9Dwebsite.tk 9Dwebsite.tk 9Dwebsite.tk 9Dwebsite.tk 9Dwebsite.tk 9Dwebsite.tk 9Dwebsite.tk 9Dwebsite.tk June 2003 INTERNATIONAL GCSE MARK SCHEME MAXIMUM MARK: 104 SYLLABUS/COMPONENT: 0580/03, 0581/03 MATHEMATICS Paper 3 (Core) 9Dwebsite.tk Page 1 1 Mark Scheme IGCSE EXAMINATIONS – JUNE 2003 (a) 7 1 (b) 42 1 Syllabus 0580/0581 Paper 3 (c) (i) 9 1 (ii) 8 2 M1 for evidence of idea of mid-value (iii) 8.3 3 M1 for 4 x 5 + 7 x 6……+ 3 x 12 or 415 M1 (dep) for ¸ 50 (d) 5cm 2 M1 for 1cm to 2 students o.e. (e) 36o 2 M1 for 5 x 360 50 (f) $7.5(0) 2 M1 ¸ 3 (g) 22 2 M1 for 11 (x 100) 50 SC1 for 19 (x 100) = 38% 50 (h) (i) 6 50 1 (ii) 14 1 Accept equivalent fractions, decimals or percentages 50 (iii) 1 1 19 2 (a) 120, ……….24, 20 1, 1, 1 (b) 7 correctly plotted points f.t. correct curve (c) 1.6 to 1.8 1 (d) 120, ……..0 2 (e) Straight line through 4 points L2 (f) (1.2 – 1.4, 92 – 96) (4.6 – 4.8, 24 - 26) 1 1 (g) -20 2 P3 C1 Deduct 1 for each error (61mm) Must be a reasonable hyperbola Accept f.t. L1 if short or not ruled SC1 for √ if all straight lines Accept f.t. SC1 for 20 or M1 for rise/run seen (numerical attempt) 16 © University of Cambridge Local Examinations Syndicate 2003 9Dwebsite.tk Page 2 3 Mark Scheme IGCSE EXAMINATIONS – JUNE 2003 (a) (i) 175 cents 1 (ii) 25b cents 1 (iii) $1.75 (iv) $ (b) (i) Syllabus 0580/0581 Paper 3 1 or √ b 25b (allow ) (0.25b) 4 100 T n 1 or √ If involves b 1 (ii) The cost of one bar 1 (c) (i) 4.5(0) 1 (ii) 4.2(0) 2 (iii) y x 1 (iv) y-7 x -1 2 M1 for (36 – 6.60)/7 B1 for y – 7 or x – 1 seen 12 4 æ3ö æ 4 ö 2 SC1 if translated by çç ÷÷ , çç ÷÷ etc. è 4 ø è - 3ø (ii) Q with vertices (9, 7), (11, 7), (11, 8) 2 SC1 if reflected in y = 8 or √ from P (iii) R with vertices (7, 7), (7, 5), (6, 5) 2 SC1 if 90o clockwise from A or √ from Q (iv) S with vertices (7, 7), (3, 7), (3, 9) 2 SC1 if different scale factor about A or enlargement of triangle T s.f. 2 about B or C (a) (i) P with vertices (4, 11), (2, 11), (2, 12) (b) (i) Translation æ3 ö çç ÷÷ è - 4ø 1 1 (ii) Enlargement Scale factor 1/2 centre A 1 1 1 (c) (i) 90o (anti-clockwise) 1 Accept 270o clockwise 2 B1 for 1 correct (ii) (3, 3) 16 © University of Cambridge Local Examinations Syndicate 2003 9Dwebsite.tk Page 3 5 Mark Scheme IGCSE EXAMINATIONS – JUNE 2003 (a) (i) Accurate and with arcs (ii) Accurate quarter-circle r = 5 (b) Correct region shaded (c) (i) 45o correct 12cm correct Syllabus 0580/0581 Paper 3 2 B1 without arcs or inaccurate 2 SC1 for r > 4.8 or < 5.2 with compass or correct r but freehand 1 or √ If convinced 1 1 6 2o 6 1mm (ii) Reasonable tangent 1 Must be ruled 65o (iii) 6.8 to 7.2 1 Accept f.t. 60.1 9 6 (a) 3 x 1 x 1.5 + 9 x 1 o.e. 2 M1 for appropriate strategy M1 (dep.) for correct numbers used (b) 3780 3 M1 for volume is area x length, 13.5 x 2.8 or 37.8 B1 for 280 seen (c) (i) 1.92 2 M1 for 2 x 1.2 x 0.8 (ii) 1 920 000 f.t. 2 M1 for (their) (i) x 106 or 200 x 120 x 80 (iii) 507 f.t. 2 M1 for (c) (ii) ¸ (b) or 507. ... or 508 Within 6 0.2cm of the centre (d) One vertical line drawn 1 (e) (order) 1 or no symmetry 1 13 7 (a) (i) 84o 1 (ii) 22o 1 (b) 11 1 (c) 16o 1 (d) (i) 32, (16), 8, 4 3 (ii) Halving o.e. 1 (e) 20o 1 Accept 10.8 ® 11, 10min 48sec ® 11min B1 for each Allow answer >20 and <22 9 © University of Cambridge Local Examinations Syndicate 2003 9Dwebsite.tk Page 4 8 (a) Mark Scheme IGCSE EXAMINATIONS – JUNE 2003 Syllabus 0580/0581 3 new lines from the vertex to the base 2 (b) 6, 7, n + 2 3 B1 for each (c) 15, 21, 55 3 B1 for each (d) 12 2 SC1 for 10 or 11 Paper 3 10 © University of Cambridge Local Examinations Syndicate 2003 9Dwebsite.tk November 2003 INTERNATIONAL GCSE MARK SCHEME MAXIMUM MARK: 104 SYLLABUS/COMPONENT: 0580/03, 0581/03 MATHEMATICS Paper 3 (Core) 9Dwebsite.tk Page 1 Question Number 1 a) b) c) d) e) f) g) 2 a) i) ii) iii) b) i) ii) iii) iv) Mark Scheme MATHEMATICS – NOVEMBER 2003 Mark Scheme Part Marks 1 1 1 1 1 1 1 1 1 1 2 24 25 or 52 27 or 33 23 29 26 28 cao 21 and 27 1300 or 1 pm 1030 9 4.35, 8.7(0) Correct straight line (through (10, 8.6 to 8.8) 9.2(0) (± 0.1) 575 (± 5) 2 2 6000 art 4400 2 3 art 10400 art 13.9 1√ 3√ 1 1 Syllabus 0580/0581 Notes Paper 3 Question Total condone 6, 26 or 6 x 26 condone 21 x 27 8 allow 10.30, 10:30 etc B1 for either 24 or 33 seen or M1 for 2 correct horizontal lines drawn or 24 and 33 marked on axis B1 for one correct P1 for (5, 4.2 to 4.4) or (10, 8.6 to 8.8) no ft. no ft. 10 18 3 a) b) i) ii) iii) 4 a) b) c) d) 4, 7, 6, 4, 4, 2, 3 2 1 cao 2 cao 2.5 cao 1 2 2 _ e) i) ii) f) 40 9 M1 for attempt at ranking list seen M1 their f (x ) ÷ f imp by 2.5 ∑ ∑ 1√ seen allow 23% ft from their table ft from their table 1√ ft their table x 10. Allow 40/300 1√ 7 30 3 9 or 0.3 or 10 30 0.23(3....) or M1 for 25 x 30 x 8 M2 for π x 102 x 14 or SC1 for π x 52 x 14 ft their a + bi ft for (their bii) ÷ (25 x 30) M2 for (their bii) ÷ (25 x 30) oe or M1 for (their bi) ÷ (25 x 30) SC1 for 5 or 6 correct or 7 correct tallies 10 19 5 a) b) i) ii) c) i) ii) d) 6 –4 Rotation through 180° about (2.5, 6) o.e. Enlargement s.f. 3 centre (1,7) 3 cao 1 : 9 cao 1 1 M1 A1 A1 B1 B1 B1 1 2 −2 −6 , –0.66 or better ' 3 9 2 Half turn M1 Al, –1 for "symmetry" allow correct description of point accept scale 3, x3 etc accept'B' for (1,7) ignore units SC1 for 27 seen M1 for correct answer nlt SC1 for 2 oe or –k 3 © University of Cambridge Local Examinations Syndicate 2003 9Dwebsite.tk 13 Page 2 6 a) i) ii) iii) b) i) ii) 7 a) i) ii) iii) iv) v) b) i) ii) 8 a) Mark Scheme MATHEMATICS – NOVEMBER 2003 27 6 1 2 2 P −3 oe 6 4x + 3 10, 16 and 23 3 44 52 2 3 M1 for (39 - 3) ÷ 6 M1 for P–3 seen or Syllabus 0580/0581 Paper 3 P 6x + 3 = oe 6 6 seen M1 for 9x + 4 – 2x – (3x + 1) oe allow 9x + 4 – 2x – 3x + 1 oe for M1 or SC1 for 4x or (+)3 in answer space M1 for 9x + 4 = 49 oe A1 for x = 5 SC1 for 40 to 48 B1 for 6 or 8 or 12 or 9 or 21 or 28 or 32 or 112 seen +M1 for adding 6 rectangles o.e. cuboid or rectangular 1 allow rectangular cuboid but not prism cube or cubical 52 1 √ ft from their aii (not strict ft) 24 2 M1 for 2 x 3 x 4 2(pq + qr + pr) oe as final 2 SC1 for pq or qr or pr seen or imp. answer for both parts. Other letters used consistently MR–1 pqr as final answer 2 M1 for pqr seen 3 M1 for 7.5 x 12 oe or 80/12 oe seen 12.5 NB 4021 answer 12.5 90 − 80 +M1 for x100 (explicit) or working uses 75 and 80 800 7.50 − 6.66.... x100 (explicit) 10 23 13 6.66.... after M0 SC2 for figs 124 to 126 ww or SC1 for 112.5 b) 120 minutes 3 c) i) Accurate ┴ bisector of AB, with arcs ±1°±1mm complete inside figure Accurate bisector of <C with arcs as above correct area shaded 2 ii) 2 3 or 180 or x 300 seen 5 5 2 +M1 for x 300 oe or 300-180 5 B1 for SC1 if accurate without arcs or incomplete line. Ignore extra lines 2 SC1 if accurate without arcs or incomplete line as above 2 √ Areas marked as diagram ft from clear intention to draw perp. bisector and angle bisector 12 9 a) i) ii) b) i) ii) iii) 150 (km) 15 000 000 oe (√) 1 2 1270 to 1320 2 (0)45 to (0)48 oe 245 to 248 1 2 Ml for their a)i) x 100 x 1000 or SC1 for their a)i) x 10n when n>0 M1 for their 8.6 x their 150 must have some evidence for their 8.6 SC1 for any answer in the range 180 < x < 270 © University of Cambridge Local Examinations Syndicate 2003 9Dwebsite.tk 8 20 Page 3 10 a) b) i) ii) c) _ Mark Scheme MATHEMATICS – NOVEMBER 2003 1 6 15 20 15 6 1 Sum 64 1 7 21 35 35 21 7 1 Sum 128 512 accept 29 2n 165 330 462 The first 6 numbers repeated in reverse order _ 1 1 2 1 2 2 1 1 Syllabus 0580/0581 Paper 3 SC1 if 6 or 7 correct SC1 for 256 SC1 for 2 x 2 x 2 seen or description 11 11 TOTAL 104 © University of Cambridge Local Examinations Syndicate 2003 9Dwebsite.tk June 2004 INTERNATIONAL GCSE MARK SCHEME MAXIMUM MARK: 103 SYLLABUS/COMPONENT: 0580/03, 0581/03 MATHEMATICS Paper 3 (Core) 9Dwebsite.tk Page 1 Mark Scheme MATHEMATICS – JUNE 2004 FINAL MARK SCHEME 0580/3 Question Answer Number 1ai 51 Syllabus 0580/0581 Paper 3 June 2004 Marks Comments Total 1 ii 49 2 iii 46 2 bi 20 60 160 80 40 (360) 2 ii correct pie chart (±2°) 2 correct labels L1 iii a 4/9 oe 1 iii b 1/3 oe 2 M1 for clear evidence of ranking M1 for total/10, allowing errors in addition M1 for evidence of ×4 oe seen or SC1 for 3 or 4 correct 5 sectors only. Any order. Or SC1 for 3 or 4 correct or ft correct 4 or 5 correct or ft correct allow (0).44…,44.….%, but not 0.4 M1 for their((D+E)/T) from their table. Can be implied. For both parts −1 once for incorrect notation eg 4 out of 9, 1:3, 4 in 9 etc 0.3 ww is zero 13 13 2a 9 1 6 1 18 1√ ft for 3× their bi (not strict ft) (0).6 2 M1 for 3× 0.2 30 2√ d (0).02 2 M1 for their bii/ci (not strict ft) or 2×3/0.2 M1 for 2×0.1×0.1 oe SC1 for fig 2 e 4.8(0) 9(.00) 14.4(0) 2.1(0) 30.3(0) 4 B1 for each 1√ ft from 4 total costs bi ii ci ii 14 14 3a 7 8 4 −1 3 B2 for 3 correct or B1 for 2 correct © University of Cambridge International Examinations 2004 9Dwebsite.tk Page 2 b Mark Scheme MATHEMATICS – JUNE 2004 Syllabus 0580/0581 13 correct or ft correct points (±1/2 a square) P3√ P2√ for 11 or 12 correct or P1√ for 7 to 10 correct Correct curve cao C1 reasonable parabola shape, no straight line segments, pointed maximum etc c − 2.7 to −2.9 2.7 to 2.9 1 1 d −1 5 1 1 e correct line drawn −3≤x≤3 2 f 2 2 g −3 1 1 1 Paper 3 M1 for incomplete line or freehand line or both their (in)correct points correctly plotted M1 for attempt at ∆y/∆x from their straight line graph −1 if y values given as well 17 17 4a 120 1 b 70 2 M1 for t+2t+75+75=360 oe 3t and 210 implies M1 ci 130 oe (eg 180−50) 2 M1 for angle sum of triangle(=180) used ii 100 oe (eg 360−100−160) 2 M1 for angle sum of quadrilateral(=360) used iii x=70 and y=30 3 √M1 for attempted elimination of one variable (be generous) A1 for each answer. no ft. correct answers reversed implies M1A1 10 10 5a bi (0).2 1 Tangent and radius mentioned 1 or described. © University of Cambridge International Examinations 2004 9Dwebsite.tk Page 3 Mark Scheme MATHEMATICS – JUNE 2004 Syllabus 0580/0581 ii 8 cao 1 iii art 1.78 3 M1 for (their) 82−7.82 oe M1(indep) for square root indicated or used 1.77 ww implies M2. 1.8 ww is zero iv 6.9 (2 sig figs only) 3√ ft for answer correct to 2 sig figs (not strict ft) (3.9×theirbiii) or M1 for 0.5×7.8×their biii + A1 for answer to more than 2 sig figs Paper 3 9 6ai ii bi ii translation cao B1 10 −2 B1 B1 rotation or turn M1 centre the origin oe A1 (+) 90 (anticlockwise) A1 allow quarter turn for M1A1 correct reflection drawn 2 SC1 for reflection in x-axis correct enlargement drawn 2 SC1 for scale factor 2, wrong centre or translated −1 for incorrect notation or a description SC1 for both answers correct but inverted 10 19 7ai pentagon 1 ii 540 2 iii 108 cao 1 ii 110 or x=70 or y=20 completion art 50.2 M1 A1 2 may be on diagram Beware of circular arguments M1 for tan(−1) and 120/100 iii 120(.2) 1√ ft for 70+their bii bi M1 for 3×180, or 5×180−360 or (180−360/5)×5 or 6×90 © University of Cambridge International Examinations 2004 9Dwebsite.tk Page 4 iv Mark Scheme MATHEMATICS – JUNE 2004 300 1√ Syllabus 0580/0581 Paper 3 ft for 180+their biii −1 for answers reversed 10 10 8ai ii iii b c d e 6 (±0.1) 10 1 2√ 73 to 76 both lines drawn (±0.1 cm) 1 2 mediator drawn (±0.1cm and 1o ) with two pairs of arcs complete circle, radius 4 (±0.1) cm drawn, centre C L marked correctly 2 √SC1 for 10n where n is an integer. (ft 60/their ai) B1 for each line. Ignore any curves at ends, lines must be at least 5 cm long. Allow dotted etc B1 for correct line with no arcs or correct arcs with no line 2 SC1 for incomplete circle 1 be convinced 11 9ai 12 1 ii 20 1 iii 2n+2 oe 2 bia 20 1 bib ii 25 48 1 2 iii 100 2 M1 for 2n +k where k is an integer M1 for 12 seen (as diagram no.) M1 for 10 seen 10 21 TOTAL MARKS 104 © University of Cambridge International Examinations 2004 9Dwebsite.tk November 2004 INTERNATIONAL GCSE MARK SCHEME MAXIMUM MARK: 104 SYLLABUS/COMPONENT: 0580/03, 0581/03 MATHEMATICS Paper 3 9Dwebsite.tk Page 1 Mark Scheme IGCSE EXAMINATIONS – NOVEMBER 2004 Syllabus 0580/0581 Question number Mark Scheme Part Marks 1 a) i) 10 1 ii) straight line from (11,10) to (11 30,10) 1 iii) straight line from (11 30,10) to (12 45,16) 1√ allow +2 mm in length by eye but must go through the correct points. f.t. from their (1130,10) iv) a) 15 1 allow ¼ hour Hatab 1 32 1 450 1 ii) straight line ruled from (1,45) to (10,450) 2 iii) a) 306 ± 4 1 10 60 to 10.80 1 allow 10.6 etc. translation 1 must be single transformation − 6 − 7 1 SC1 for correct vector inverted, or 1 − 12 , or for correct row − 14 b) v) b) i) b) 2 a) Notes rotation M1 -90 or 90 clockwise o.e. A1 about (0, 0) o.e. A1 Question Total SC1 for freehand or broken line or any straight line through the origin ± ½ small square at both points vector, or co-ordinates. Condone missing brackets b) Paper 3 must be single transformation © University of Cambridge International Examinations 2005 9Dwebsite.tk 11 Page 2 c) Mark Scheme IGCSE EXAMINATIONS – NOVEMBER 2004 Syllabus 0580/0581 (0, 0) 1 1.5 o.e. 1 not 3:2 etc. d) i) correct triangle drawn 2 SC1 for reflection of A in any vertical line or in y = -1 ii) correct triangle drawn 2 SC1 for 180o rotation about any point or SC1 for rotation ± 90o about (-4,-3) 3 Paper 3 12 In this question alternative methods must be complete a) 8 1 b) 6 2 M1 for 100 − 64 o.e. must show square root c) art 53.1 2 M1 for sin and 8/10 seen o.e. d) art 7.15 3 M1 for tan 40 and 6 seen +M1 for 6/tan 40 o.e. e) 13.15 or 13.2 1√ f.t. for their b) + d) to 3 s.f. or better 9 4 a) i) ii) triangle drawn with three sides the correct length ± 0.1 cm 3 56 ± 2 c.a.o. 1 b) 2 for two sides correct, with arcs 1 for two sides correct without arcs in this part of the question deduct 1 once for broken lines i) complete locus drawn 3 1 for a line correct distance from PQ 1 for a semicircle © University of Cambridge International Examinations 2005 9Dwebsite.tk Page 3 ii) iii) 5 a) i) b) c) Mark Scheme IGCSE EXAMINATIONS – NOVEMBER 2004 correct line drawn ± 1 mm, ± 1o correct arcs, radius > 4 cm B1 correct area shaded 2 Syllabus 0580/0581 Paper 3 B1 kite 1 ii) correct line BD drawn 1 iii) 70 2 (p =) 90 1 (q =) 50 1 (r =) 50 1√ 128.6 c.a.o. 4 SC1 for shading on left hand side of their ‘mediator’ or inside lines drawn for their b) i) 11 Allow broken line, one line only M1 for 360 − 140 − 80 o.e. 2 f.t. from their q, not strict f.t. M2 for 180 5 × 180 o.e. 7 360 or 7 (may be implied by art 129) +A1 for 128.57 6 a) b) 3 0 0 1,1,1 7 correct points plotted P3√ P2√ for 5 or 6 points ± ½ sm. sq. P1√ for 4 points. not strict f.t. c) smooth curve through all correct points C1 incorrectly plotted points should be ignored for C1. Minimum curved, not pointed -0.8 to -0.7 c.a.o. 1 ignore any y values 2.7 to 2.8 c.a.o. 1 © University of Cambridge International Examinations 2005 9Dwebsite.tk 11 Page 4 Mark Scheme IGCSE EXAMINATIONS – NOVEMBER 2004 Syllabus 0580/0581 d) 4 0 1,1 e) correct line drawn through (-4,8) and (4,0) 1 complete line f) -1.7 to -1.4 c.a.o. 1 ignore any y values 2.4 to 2.7 c.a.o. 1 16 1 3x + 8 o.e. 2 -9a 1 +5b 1 c) 3a(2 – 3a) 2 M1 for any correct partial factorisation d) v -u o.e. a 2 M1 for v – u seen e) (x=) 2.5 2 M1 for correct multiplication of LHS of one or both equations to equalise coefficients or for a recognisable attempt to eliminate one variable (y=) -3.5 2 M1 for correct substitution of their other value or M2 correct matrix method 7 a) i) ii) b) 8 a) i) 22 ii) 77 or iii) 89 14 M1 for 3x. allow n instead of x. deduct 1 for ‘= x’ or ‘= 0’ or = any number, but allow a different letter 1 67 + 87 2 2 2 Paper 3 M1 for evidence of ranking seen anywhere. e.g. 67,87 M1 for their ∑x 12 © University of Cambridge International Examinations 2005 9Dwebsite.tk 13 Page 5 Mark Scheme IGCSE EXAMINATIONS – NOVEMBER 2004 72 ± 1 1 80 ± 1 1 94 ± 1 1 1080 ± 5 1√ 1200 ± 5 1√ 1410 ± 5 1√ appropriate observation 1 27 to 36 entered correctly 1 square 1 b) 100 1 c) n2 c.a.o. 1 iii) a) 43 c.a.o. 1 871 2 100 1 ii) 10n c.a.o. 1 iii) 91 1 vi) 10n – 9 o.e. 1 b) i) ii) iii) 9 a) i) ii) a) b) b) i) Syllabus 0580/0581 Paper 3 strict f.t.s for their angle x 15 ± 5 12 allow n x n M1 for 900 – 30 + 1 o.e. allow 10 x n 11 Total 104 © University of Cambridge International Examinations 2005 9Dwebsite.tk June 2005 IGCSE MARK SCHEME MAXIMUM MARK: 104 SYLLABUS/COMPONENT: 0580/03, 0581/03 MATHEMATICS Paper 3 (Core) 9Dwebsite.tk Page 1 Mark Scheme IGCSE – JUNE 2005 Syllabus 0580/0581 Paper 3 Question 1 (a) Answer 2.8 Marks 1 Comments ignore minus sign, accept 2800 g (b) 106.5(0) 1 107 is X (but remember to look back for 106.5) (i) 10 40 1 accept 10.40, 10:40, 10.40 am (ii) 1 (hour) 30 (mins) 1 f.t. f.t. from (c)(i) [f.t. is (c)(i) > 12 10] accept 1 ½ (hours), 1.5 (hours), 90 (mins) (d) 13.55 1 accept 1.55 (pm) but 01 55 and 1.55 am are X (e) 357 3 M2 for 420 – 15 x 420/100, 420 x 85/100 o.e. or M1 for 15 x 420/100 o.e. answer of 63 is M1 implied (c) 8 2 (a) –2 1 2 –7 3 B2 for 3 correct, B1 for 1 or 2 correct (b) 9 correct points plotted P3 f.t. P2 f.t. for 7 or 8 correct, P1 f.t. for 5 or 6 correct limit for acurracy is ½ small square smooth curve drawn C1 must go through the 9 correct points not dependent on P3 –0.4 ( ± /0.1) 1 please note no f.t. on this part 2.4 ( ± 0.1) 1 (i) correct line drawn 1 accept dotted/dashed line must be full length from (1, –14) to (1,2) (ii) x=1 1 f.t. f.t. from (d)(i) if x = k any reference to y is X (c) (d) 11 3 (a) (b) (i) –3 9 1 1 (ii) 9 1 ignore minus sign correct max drawn correct min drawn 1 f.t. 1 f.t. } } } f.t. is from (a)(i) [Sunday] allow Sunday (only) to be 1 square out horizontally allow freehand straight lines © University of Cambridge International Examinations 2005 9Dwebsite.tk Page 2 (c) Mark Scheme IGCSE – JUNE 2005 Syllabus 0580/0581 (i) 3 1 f.t. f.t. is 3 if Sunday negative otherwise 2 allow 3 out of 7 (ii) Sunday 1 f.t. f.t. if not Sunday is Thursday 42.8 2 M1 for 9 x 6/5 + 32 or better e.g. 54/5 + 32, 10.8 + 32 answer of 43 is M1 implied (d) Paper 3 9 4 (a) (i) 3 –1 1 1 (ii) correct translation drawn 1 f.t. } f.t. where possible (i.e. still on the grid) 1 f.t. } condone inaccuracy/unruled if intention is clear if ½ scale used then penalise first occurence only (–1) } (b) (i) –2 2 1 1 (ii) correct translation drawn 1 f.t. } f.t. where possible (i.e. still on the grid) 1 f.t. } condone inaccuracy/unruled if intention is clear enlargement (centre) (0,0) o.e. (scale factor) 2 1 1 1 } } must be a single transformation } (i) 1 1 (ii) 1 1 (iii) correct rotation drawn 2 SC1 for 180 rotation about any other point SC1 for ± 90 rotation about O (iv) reflection in the x-axis oe M1 B1(dep) } } (c) (d) } must be a single transformation condone inaccuracy/unruled if intention is clear enlargement, s.f. = –1, centre (0,0) is B2 17 5 (a) (i) 8 7 10 9 8 18 3 (ii) 6 1 c.a.o (iii) 4 2 c.a.o 2 for 4 or 5 correct, 1 for 2 or 3 correct accept tallies if in 5’s, accept 8/60, 7/60 etc. M1 for evidence of ranking (cum. freq.) © University of Cambridge International Examinations 2005 9Dwebsite.tk Page 3 (b) Mark Scheme IGCSE – JUNE 2005 Syllabus 0580/0581 Paper 3 (iv) 3.9 3 c.a.o M1 (f.t.) for 8 x 1 + 7 x 2 + 10 x 3 or 8 +14 +30 (min 3) M1 (f.t.) dep. for /60 [both M marks may be by the table] answer of 3.93(3333) is M2 implied 39.3(33...) is M1 implied (i) 60 2 M1 for 10 + 7 + 10 + 7 + 14 + 12 (min 3) (ii) 3.7(3333 ) 3 M1 (f.t.) for 10 x 1 + 7 x 2 + 10 x 3..... or 10 +14 + 30...... (min 3) M1 (f.t.) dep. for /(b)(i) 14 6 (a) (b) (c) (i) 6 2 M1 for 6x = 36 or 3x = 18 o.e. (ii) 72 2 f.t. f.t. is 2 x (a)(i) x (a)(i) M1 (f.t.) for 6 x 12, 2 x 36, 2 x 6 x 6 (i) 1.5 or 1 ½ or 3/2 2 (ii) 4z + 2 = 10z – 1 1 M1 for 3y – y = 3 o.e. [unknown on one side] accept any equivalent equation in z if (b)(ii) is left blank may recover mark if 4z + 2 = 10z – 1 seen in (b)(iii) (iii) 0.5 or ½ or 3/6 3 B1 for correct single z term B1 for correct single constant term (i) a – b = 3 o.e. 4a + b = 17 o.e. 5a = 20 } 1,1 } if (c)(i) is left blank may recover mark(s) with a – b = 3, 4a + b = 17, 5a = 20 seen in (c)(ii) 3 2 for either (a=) 4 or (b=) 1 or M1 (f.t.) for correctly eliminating one of the variables 4a + b + 3 = a – b + 17 (ii) (a=) 4 and (b=) 1 15 7 050 ( ± 2) 2 M1 for correct angle but not 3 figures i.e. 50 ( ± 2) (i) correct line drawn ( ± 2) 1 length at least 3 cms long (ii) correct position marked 1 f.t. f.t is from line drawn in (b)(i) ( ± 2 mm) but must be on the line AC (i) 7 ( ± 2 mm) 1 (ii) 200000 2 c.a.o. (a) (b) (c) 1 for figs 2 or SC1 for figs 1.94 to 2.06 © University of Cambridge International Examinations 2005 9Dwebsite.tk Page 4 (d) (e) Mark Scheme IGCSE – JUNE 2005 Syllabus 0580/0581 Paper 3 (i) correct locus drawn 2 f.t. f.t. is for their scale (normally 5 cm) at least over sea allow dotted/dashed locus SC1 for any other circle with centre A drawn SC1 for ¼ correct circle over sea (ii) correct line SR drawn 5 to 6 incl. 1 f.t. f.t. is for their S 1 no f.t. on this part (i) 18.6 to 19.4 incl. 2 SC1 for 9.3 to 9.7 incl. seen (ii) 27.9 to 29.1 incl. 3 (iii) 15.4 2 f.t. M1 for conversion of minutes to hours (min of 0.66, 0.67 if dec.) M1 (indep) f.t. for their distance (e)(i)/their time taken f.t. is (e)(ii)/1.85 M1 for (e)(ii)/1.85 seen allow dotted/dashed line 18 8 (a) 208 3 M2 for 2(24 + 32 + 48) or 48 + 64 + 96 or 160 + 24 + 24 o.e. or M1 for 24 or 32 or 48 or 160 seen (b) 192 2 M1 for 6 x 8 x 4 (i) straight line AC 1 (ii) 12.8 3 M2 for 10 + 8 or 100 + 64 or 164 or M1 for 10 + 8 or 100 + 64 or 164 or SC1 for complete correct use of Pythagoras (iii) 51.3 or 51.4 3 M1 for 10/8 and tan seen o.e. and M1 for tan 10/8 seen o.e. [the o.e include sin or cos with their (c)(ii)] or SC1 for complete correct use of a trig. ratio (c) 12 104 © University of Cambridge International Examinations 2005 9Dwebsite.tk UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education MARK SCHEME for the November 2005 question paper 0580/0581 MATHEMATICS 0580/03, 0581/03 Paper 3 (Core), maximum raw mark 104 This mark scheme is published as an aid to teachers and students, to indicate the requirements of the examination. It shows the basis on which Examiners were initially instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began. Any substantial changes to the mark scheme that arose from these discussions will be recorded in the published Report on the Examination. All Examiners are instructed that alternative correct answers and unexpected approaches in candidates’ scripts must be given marks that fairly reflect the relevant knowledge and skills demonstrated. Mark schemes must be read in conjunction with the question papers and the Report on the Examination. • CIE will not enter into discussion or correspondence in connection with these mark schemes. The minimum marks in these components needed for various grades were previously published with these mark schemes, but are now instead included in the Report on the Examination for this session. CIE is publishing the mark schemes for the November 2005 question papers for most IGCSE and GCE Advanced Level and Advanced Subsidiary Level syllabuses and some Ordinary Level syllabuses. 9Dwebsite.tk Page 1 Question 1 (a) (b)(i) Mark Scheme IGCSE – NOVEMBER 2005 Answer Reflection drawn, Marks 1 correctly in mirror line 1 Rotation 90° clockwise or –90 centre of rotation marked or described unambiguously M1 A1 Syllabus 0580/0581 Paper 3 Comments any recognisable reflected E in any vertical mirror line, allow good freehand Total or turn or rotated A1 (ii) enlargement scale factor 3 centre of enlargement marked or described unambiguously M1 A1 (iii) translation − 7 − 5 1 B1 B1 A1 or enlarged SC1 for “made 3 times larger” etc. SC1 for both values correct but inverted, or correct values with other imperfection, for example given as coordinates. [11] 2 (a) (i) 56.3 2 (ii) 123.7 M1 for tan ABC = 6/4 oe 1√ (b) 7.21 2 M1 for 62 + 42 oe (c) 17.2 m 12 m2 3√ M1 for area method A1 for both numerically correct B1 for both units correct [8] 3 (a) (i) 5 –3 12 1 1 1 (ii) 9 correct points plotted correct, smooth curve drawn P3√ C1 (iii) –0.8 to –0.7 2.6 to 2.8 1 1 (b)(i) 8 and 2 P2 for 7 or 8 or P1 for 5 or 6 1 (ii) points curve P2 C1 P1 for 5 or 6 correct (iii) 3.1 to 3.3 1√ ft dep on only 1 point of intersection [14] © University of Cambridge International Examinations 2005 9Dwebsite.tk Page 2 Question 4 (a) Mark Scheme IGCSE – NOVEMBER 2005 Syllabus 0580/0581 Answer 8.36 Marks 3 Comments M1 for addition of at least 10 numbers M1 for divide by 14 (b) 8 www 2 M1 for ranking list seen or SC1 for (6 + 10)/2 seen (c) 6 1 (d) 3443 2 1 for 2 or 3 correct (e) (i) 7/14 oe √1 ft for their (4 +3)/their 14, correct or ft correct Total √1 (ii) 3/14 (f) Paper 3 √2 12 M1 for their (10 – 14) x 3 [12] 5 (a) (b)(i) bearing 99 to 101° drawn angle BAC 109 to 111° drawn AB 4.9 to 5.1 cm AC 5.9 to 6.1 cm B1 B1 37 to 40 1√ (ii) 247 to 250 B1 B1 1√ (c) 8.9 to 9.1 1√ (d)(i) Two positions found, with appropriate arcs 3 (ii) P or Q 4.0 to 4.4 ft from (b)(i) 2 for two positions without arcs and labelled 1 for one position found and labelled 1 √1 ft for correct measurement of their closest position to B [12] © University of Cambridge International Examinations 2005 9Dwebsite.tk Page 3 Question 6 (a) (i) Mark Scheme IGCSE – NOVEMBER 2005 Paper 3 Marks 4 Comments M1 for evidence of shape being broken down (or 6 by 2 rectangle – triangle) +M1 for one correct rectangular area. +M1 for evidence of triangle calculation (ii) 32400 2√ SC1 for figs 322 to 323 or M1 for (a)(i) x 3 x 1000 (iii) 36 2 M1 for 6 x 3 x 2 2 M1 for 61.5 (b)(i) Answer 10.8 www Syllabus 0580/0581 61 hours and 30 min (ii) art 13500 1 (iii) 3.38 2 M1 for their (b)(ii) x 2.5/10000 (iv) 4 1√ rounding up Total [14] 7 (a) (i) (b) y = 2x – 3 oe 1 (ii) 2 oe 2 SC1 for gradient of other line (–1) (iii) 3 2 1 0 –1 2 1 for two correct (iv) correct line drawn 1 (v) (x =) 1.6 1.7, or 1.8 (y =) 0.2, 0.3, or 0.4 3 2 for correct answers not to 1 dp or 1 for 1 answer correct M1 M1 working must be seen but second M1 can imply the first A1 A1 SC1 for 1.67 and 0.333 eliminating one of the variables eliminating the other variable (√) 1.66 or 5/3 only 0.3 or 1/3 only [13] 8 (a) correct diagram (b) 13 16 19 2 1 for 2 correct (c) 298 2 M1 for evidence of a correct method (d) 3n + 1 2 1 for 3n + k (e) 28 2 M1 for evidence of a correct method [9] © University of Cambridge International Examinations 2005 9Dwebsite.tk Page 4 Question 9 (a) (b)(i) Mark Scheme IGCSE – NOVEMBER 2005 Answer 51.4 Marks 3 Isosceles 1 (ii) p = 50 q = 80 r = 50 s = 50 t = 80 (c) 25 Syllabus 0580/0581 Paper 3 Comments 2 for 51 or M1 for any complete method 1 1√ 1√ 1√ 1√` ft for 180 – 2p ft for = p ft for = p ft for = q or 180 – 2p 2 M1 for 90 – 65 oe Total [11] © University of Cambridge International Examinations 2005 9Dwebsite.tk UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education MARK SCHEME for the May/June 2006 question paper 0580 and 0581 MATHEMATICS 0580/03 and 0581/03 Paper 3, maximum raw mark 104 These mark schemes are published as an aid to teachers and students, to indicate the requirements of the examination. They show the basis on which Examiners were initially instructed to award marks. They do not indicate the details of the discussions that took place at an Examiners’ meeting before marking began. Any substantial changes to the mark scheme that arose from these discussions will be recorded in the published Report on the Examination. All Examiners are instructed that alternative correct answers and unexpected approaches in candidates’ scripts must be given marks that fairly reflect the relevant knowledge and skills demonstrated. Mark schemes must be read in conjunction with the question papers and the Report on the Examination. The minimum marks in these components needed for various grades were previously published with these mark schemes, but are now instead included in the Report on the Examination for this session. • CIE will not enter into discussion or correspondence in connection with these mark schemes. CIE is publishing the mark schemes for the May/June 2006 question papers for most IGCSE and GCE Advanced Level and Advanced Subsidiary Level syllabuses and some Ordinary Level syllabuses. 9Dwebsite.tk Page 1 Mark Scheme IGCSE – May/June 2006 Syllabus 0580 and 0581 © University of Cambridge International Examinations 2006 9Dwebsite.tk Paper 03 Page 2 Mark Scheme IGCSE – May/June 2006 Syllabus 0580 and 0581 © University of Cambridge International Examinations 2006 9Dwebsite.tk Paper 03 Page 3 Mark Scheme IGCSE – May/June 2006 Syllabus 0580 and 0581 © University of Cambridge International Examinations 2006 9Dwebsite.tk Paper 03 Page 4 Mark Scheme IGCSE – May/June 2006 Syllabus 0580 and 0581 © University of Cambridge International Examinations 2006 9Dwebsite.tk Paper 03 Page 5 Mark Scheme IGCSE – May/June 2006 Syllabus 0580 and 0581 © University of Cambridge International Examinations 2006 9Dwebsite.tk Paper 03 Page 6 Mark Scheme IGCSE – May/June 2006 Syllabus 0580 and 0581 © University of Cambridge International Examinations 2006 9Dwebsite.tk Paper 03 Page 7 Mark Scheme IGCSE – May/June 2006 Syllabus 0580 and 0581 © University of Cambridge International Examinations 2006 9Dwebsite.tk Paper 03 Page 8 Mark Scheme IGCSE – May/June 2006 Syllabus 0580 and 0581 © University of Cambridge International Examinations 2006 9Dwebsite.tk Paper 03 Page 9 Mark Scheme IGCSE – May/June 2006 Syllabus 0580 and 0581 © University of Cambridge International Examinations 2006 9Dwebsite.tk Paper 03 Page 10 Mark Scheme IGCSE – May/June 2006 Syllabus 0580 and 0581 © University of Cambridge International Examinations 2006 9Dwebsite.tk Paper 03 UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education MARK SCHEME for the October/November 2006 question paper 0580, 0581 MATHEMATICS 0580/03, 0581/03 Paper 3 (Core), maximum raw mark 104 This mark scheme is published as an aid to teachers and students, to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began. All Examiners are instructed that alternative correct answers and unexpected approaches in candidates’ scripts must be given marks that fairly reflect the relevant knowledge and skills demonstrated. Mark schemes must be read in conjunction with the question papers and the report on the examination. The grade thresholds for various grades are published in the report on the examination for most IGCSE, GCE Advanced Level and Advanced Subsidiary Level syllabuses. • CIE will not enter into discussions or correspondence in connection with these mark schemes. CIE is publishing the mark schemes for the October/November 2006 question papers for most IGCSE, GCE Advanced Level and Advanced Subsidiary Level syllabuses and some Ordinary Level syllabuses. 9Dwebsite.tk Page 2 Qu. 1 (a) (i) (ii) (iii) (iv) (v) (vi) (b) (i) (ii) (iii) (iv) (v) Mark Scheme IGCSE - OCT/NOV 2006 Answer √35 3 45 2 or 3 or 37 2 24 Correct arrangement of triangles drawn. 16 25 36 10000 or 1 x 104 n2 or n × n Square (numbers) Marks 1 1 1 1 1 1 1 2 1 1 1 Syllabus 0580, 0581 Paper 3 Comments Total accept any combination accept if only 1 internal line missing 1 mark for 2 correct Not 1002 accept t = n2 etc. do not accept x2 accept squares, squared 12 –4 2 (a) (b) –4 –10 1 8 correctly plotted points, within square. 2 Smooth curve through 8 points 3 P3ft C1 (c) x = 0.5 drawn. 1 (d) (e) (f) 2.2 to 2.4 y = 1 drawn. (x =) –0.7 to –0.5 (x =) 1.5 to 1.7 1ft 1 1 1 1 for each correct entry P2 for 6 or 7 correct. ft P1 for 4 or 5 correct. ft Allow small errors in the points provided shape is maintained. must be from (0.5, –9) to curve at least must touch curve as min. length 12 3 (a) (i) (ii) (b) (i) (ii) (iii) (c) (i) (ii) (iii) (iv) 128.571…… or 128° 34′ (….) 128.6 x + 3y + 80 + 95 = 360 (or better) x + 3y = 185 oe 40 2 1 ft 1 1 2 ft 180° or angle sum of triangle mentioned Angle in a semi-circle mentioned. (a =) 70 (b =) 20 40 1 1 1 1 1ft M1 for 180 – 360/7 oe Follow through their (a)(i). Both marks may be gained in (b)(i) M1 for x correctly substituted into the linear equation. Follow through their (b)(ii) provided linear in x and y. SC1 for a = 20 b = 70 2 × their value for b provided 0 < b < 55. 12 4 (a) (i) (ii) (b) (i) (ii) Enlargement (Scale Factor) 3 (Centre) (2, 4) Reflection (in the line) x = 4 Correct translation drawn B1 B1 B1 B1 B1 2 Correct rotation drawn 2 . SC1 for translation by the vector. − 3 1 2 k 2 − 1 .5 k − 3 SC1 for any 180° rotation. SC1 for 90° or 270° rotation about (–1, –2) 9 © UCLES 2006 9Dwebsite.tk Page 3 5 (a) (b) (c) (d) Mark Scheme IGCSE - OCT/NOV 2006 90 14.3 art 18.5 to 18.6 2 2 3 20.6 art 2 Syllabus 0580, 0581 Paper 3 M1 for 0.5 × 18 × 10 M1 for 10 × tan 55oe M1 for 0.5 × 10 × their (b) or M1 18 – their (b) 1 x 10 x their BX M1 2 M1 for Their (a) – (0.5 × 10 × their (b)) M1 for √( 182 + 102) oe 9 6 (a) 750cao 3 (b) (i) (ii) 756 8 2 1ft (c) (i) 10 4 2 1 1 1ft (ii) M1 Figs 10 ÷ figs 20 and figs 15 ÷ figs 10. OR M1 Figs 10 x Figs 15 and Figs 20 x Figs 10 M1 dep bricks in length × bricks in height. M1 dep. area of wall ÷ area of brick. If MO then SC1 for Figs 75 M1 for 720 × 1.05 oe Their (b)(i) rounded up to the number of hundreds Their cement buckets ÷ 3.5 and rounded up to next whole number 9 7 (a) (b) (c) (i) (ii) –1 2 (m =) 2 (c =) 3 Correct line drawn. y = 2x – 3 oe 1 1 1 2ft SC1 for 1 SC1 for − k K must cross both axes and line A SC1 for m = 2 or c = –3. Follow through their line for 2 and SC1. 7 8 (a) (i) 3 6 8 7 6 1 1 2 3 (ii) 5.71 art 3 (iii) (iv) (v) 7 cao 5 cao 5.5 1 1 2 (vi) (vii) 17.6 art 54 or 53 2ft 2ft 12 25 19 2 2 5 and 6 1ft (b) (i) (ii) 2 for 6 or 7 correct –1 if tally marks 1 for 4 or 5 correct M1 for evidence of size x frequency calculated for the sizes. M1dep for sum of at least 5 ÷ 34 M1 for evidence of finding the middle shoe size. (Not just an answer of 5 or 6) M1 for their 6 ÷ 34 × 100 or 17.65 M1 for their 6 ÷ 34 × 306 or ‘53.8….’. or 53.9 1 mark for 2 or 3 correct or all correct but not added Their class with the highest frequency. –1 for tally marks 17 © UCLES 2006 9Dwebsite.tk Page 4 9 (a) Mark Scheme IGCSE - OCT/NOV 2006 Correct accurate drawing. (lengths ± 0.2 cm, angles ± 1°) 3 233° to 235° 2ft (ii) 182 to 190 2ft (iii) 2 (hours) 42 (mins) 4 (iv) (v) 24 Correct circle drawn 2 2 (vi) 84 to 100 2ft (b) (i) Syllabus 0580, 0581 Paper 3 M1 for angle = 90° = BAC. M1 for AB = 7.5cm and AC = 5.5 cm. A1 for completed triangle. (Dependent on at least one M) From their diagram. M1 for their angle BCA measured correctly (± 1°) Their BC × 20. M1 for their BC (correct is 9.1 cm to 9.5 cm) SC3 for 2.7(0….) M1 for 20 × 1.85 M1 for 100 ÷ their 37 SC2 for 2 hr 7 mins with no method. B1 for their time correctly changed to hours and minutes. M1 for 18 ÷ 0.75 oe M1 for partial circle (crossing AB and AC) M1 for 4.2 to 5.0 Follow through their diagram, dependent on intersections seen on BC 17 Total marks © UCLES 2006 9Dwebsite.tk 104 UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education MARK SCHEME for the May/June 2007 question paper 0580 and 0581 MATHEMATICS 0580/03 and 0581/03 Paper 3 (Core), maximum raw mark 104 This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began. All Examiners are instructed that alternative correct answers and unexpected approaches in candidates’ scripts must be given marks that fairly reflect the relevant knowledge and skills demonstrated. Mark schemes must be read in conjunction with the question papers and the report on the examination. • CIE will not enter into discussions or correspondence in connection with these mark schemes. CIE is publishing the mark schemes for the May/June 2007 question papers for most IGCSE, GCE Advanced Level and Advanced Subsidiary Level syllabuses and some Ordinary Level syllabuses. 9Dwebsite.tk Page 2 1 Mark Scheme IGCSE – May/June 2007 1 B1 (ii) 8 or −8 or ±8 B1 (iii) 4 B1 (iv) 6 B1 3 B1 Multiple of 60 B1 9 B1 (a) (i) (b) (i) (ii) (c) (i) (ii) Syllabus 0580/0581 Paper 03 Not −4 B1,B1 3 and 223 [9] 2 (a) (b) (c) 2 5 336 − × 336 or × 336 7 7 (=) 240 E1 5 ÷ their(5 + 4 + 3) × 240 100 M1 A1cao 3 ÷ their(5 + 4 + 3) × 240 × 12 (=) 720 (d) M1 M1 E1 720 × 1.06 2 oe M2 808.99(2) or 809 A1 240 must be seen for this mark www 2 1 3 for . 4 12 720 must be seen for this mark Allow 2880 for 240 × 12 and Implied by 88.99(2) or 89(total interest)seen M1 for 720 × 1.06 (implied by 763.2 seen) SC1 for 806.(4) (Simple Interest) www 3 for 808.99(2) or 809 [9] © UCLES 2007 9Dwebsite.tk Page 3 3 Mark Scheme IGCSE – May/June 2007 Syllabus 0580/0581 Paper 03 1 × 5 × 122oe 2 360 B2 M1 for (ii) 7.5oe B2 M1 for 225 /4 oe (implied by 56.25) (iii) 1 2E or E v 2 2 2 v B2 B1 for 2E or E (b) xy( y – x) final answer B2 B1 for x(y2 – xy) or y(xy – x2) SC1 for xy(y + x) (c) 3x – 15 + 28 – 6x (= 7) 13 – 3x (= 7) x= 2 MA1 M1ft A1cao (a) (i) Equating coefficients of x or y, or equivalent method. 5y = 5 oe or 10x = 30 oe x = 3, y = 1 (d) 1 or division by v2 2 Independent ax + b (=7) from their expansion www 3 M1 A1 A1 or a correctly substituted substitution. E.g. y = 13 – 4x ⇒ 2x + 3(13 – 4x) = 9 www 3 [14] 4 −10, −20, −60, 30, 20, 15 B2 B1 for –20 (x = –3) or 20 (x = 3) Their 12 points plotted correctly. P3ft Smooth curves through all points. C1 P2ft for 10 or 11 points correct. P1ft for 8 or 9 points or 1 quadrant correct. Two distinct curves; no part of curves between x = –1 and x = 1 (b) 2 B1 (c) Correct lines ruled (d) (i) (2.4 to 2.5, 24 to 25) (−2.4 to −2.5, −24 to −25) (a) (i) (ii) (ii) (e) B1,B1 B1ft B1ft Minimum length from x = –3 to x = 3. ft their points of intersection ft their points of intersection y = 10x oe B1 cao −10 B1 cao [13] © UCLES 2007 9Dwebsite.tk Page 4 5 Mark Scheme IGCSE – May/June 2007 (a) (i) 135 (green) B1 (ii) 75 (yellow) B1 (iii) Ruled lines correct to 2° 3 correctly labelled sectors B1ft B1 Only if (a)(i) + (a)(ii) = 210°. Independent of previous marks Accept decimals, percentages (b) (i) 10 oe 24 B1 (ii) 15 oe 24 B1 (iii) 19 oe 24 B1 (c) (i) 0 B1 (ii) 1 B1 Labelled arrows correctly positioned by eye (d) Syllabus 0580/0581 B3ft SC1 for Paper 03 12 0 24 0 and or and 12 12 24 24 1 mark for each. ft their probabilities from (b). [12] 6 (180 – 56)/2 B1 Alt. 90 − (56 ÷ 2) (ii) art 2.82 B2 M1 for 6cos 62° (implied by 2.8) Long method must be complete. (iii) 5.63 to 5.64 (iv) 5.3 or art 5.30 (a) (i) B1ft B2 2 × their (a)(ii) M1 for 6sin 62°oe Long method must be complete. 29.8 to 29.9 B2ft M1 for their (a)(iii) × (a)(iv) (ii) art 12.5 B2ft M1 for 0.5 × π × (their (a)(ii)2) (iii) 42.3 to 42.4 B1ft ft is their (b)(i) + (b)(ii) 21100 to 21200 B2ft M1 for their (b)(iii) × 500 500 3600 × oe 60 1000 M2 M1 for figs 500 ÷ figs 60 (b)(i) (c)(i) (ii) 30 A1 1 min 2 or SC1 for1km per minute seen. www B3 SC2 for answer of [16] © UCLES 2007 9Dwebsite.tk Page 5 7 Mark Scheme IGCSE – May/June 2007 Syllabus 0580/0581 Paper 03 (a) Trapezium B1 (b) (i) Translation 9 across, 3 down B2 (ii) Correct reflection B2 B1 any reflection of ABCD in a line parallel to l. (iii) Correct rotation B2 B1 90° clockwise rotation of ABCD about A (iv) Correct enlargement B3 B1 any enlargement of ABCD and B1 any enlargement of ABCD SF 3 or B1 any enlargement of ABCD centre O (not penalise lack of labelling provided intention clear) − 3 B1 for 9 across or 3 down or 9 [10] 8 (a) (i) B1 B1cao (ii) 90 (iii) P to R and Q to R ruled. B1 (iv) (angle in a ) semi-circle B1 Angle on a diameter. Half the angle at the centre. Bisector of QR with arcs. B2 SC1 if accurate without arcs. Maximum errors 2mm from mid-point and 2° from perpendicular. Bisector of PRQ with arcs. B2 SC1 if accurate without arcs. Maximum error 2° in line from R. If wrong line and/or angle used treat as misread each time. (b) (i) (ii) (c) Diameter from P through O to Q Correct Shading 2 Dep. on B2 in (b)(i) and (b)(ii). SC1 for ‘correct’ shading but dependent on at least SC1 in (b)(i) and (b)(ii). [10] © UCLES 2007 9Dwebsite.tk Page 6 9 Mark Scheme IGCSE – May/June 2007 Syllabus 0580/0581 Paper 03 (a) Letter E correctly drawn B1 (b) 22, 29, 36 B3 B1 for each correct number. (c) (i) 71 B2 B1 for 7 × 10 + 1 or 8 + 9 × 7 seen. 7n + 1 or 8 + (n – 1) × 7 oe B2 SC1 for 7n + k seen. (k is an integer) oe (ii) (d) Their (c)(ii) = 113 Full method of solution of their equation. 16 B1ft M1ft A1cao ft any expression involving n. ft only a linear equation. (113 – k)/ ‘7’ www B2 [11] © UCLES 2007 9Dwebsite.tk UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education MARK SCHEME for the October/November 2007 question paper 0580 and 0581 MATHEMATICS 0580/03 and 0581/03 Paper 3 (Core), maximum raw mark 104 This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began. All Examiners are instructed that alternative correct answers and unexpected approaches in candidates’ scripts must be given marks that fairly reflect the relevant knowledge and skills demonstrated. Mark schemes must be read in conjunction with the question papers and the report on the examination. • CIE will not enter into discussions or correspondence in connection with these mark schemes. CIE is publishing the mark schemes for the October/November 2007 question papers for most IGCSE, GCE Advanced Level and Advanced Subsidiary Level syllabuses and some Ordinary Level syllabuses. 9Dwebsite.tk Page 2 1 (a) (i) 35 Mark Scheme IGCSE – October/November 2007 Syllabus 0580 and 0581 Paper 3 B1 cao (ii) 7 B1 cao (iii) 8 B1 cao (iv) 7.71 art B3 ft M1 for 1x5 + 5x6 + 10x7 + 9x8 + 7x9 + 3x10 attempted M1 for ÷ 35 (ft from (a)(i) but not for 6) SC2 for 7.7 2 M1 for 7/35 x 360 (ft but not for 6) oe B1 final line (ft) drawn accurately, 1° accuracy (b) (i) 72 (ii) line drawn [9] all within 1 mm 2 (a) translation drawn B2 (–5,4), (–3,4), (–4,5) SC1 for any other translation not parallel to a axis (b) reflection drawn B2 (1,–3), (3,–3), (2,–4) SC1 for reflection in x=–1 or any y=k (c) rotation drawn B2 (–1,–1), (–3,–1), (–2,–2) SC1 for any 180 rotation or +90, –90 about (0,0) (d) enlargement drawn B2 (2,2), (6,2), (4,4) SC1 for any other enlargement sf=2 or centre (0,0) (e) enlargement (sf=) 1/2 (centre) (0,0) B1 B1 B1 accept O © UCLES 2007 9Dwebsite.tk [11] Page 3 3 Mark Scheme IGCSE – October/November 2007 5 Paper 3 (a) –6, –12, –36, 36, 12, 6 B3 B1 for ± 36, B1 for ± 12, B1 for ± 6 SC1 for any 3 correct (b) 12 points plotted P3 C1 correct points ft within 1 mm P2 for 10 or 11, P1 for 8 or 9, P1 for 1 correct branch must be smooth branches of rectangular hyperbola (c) 1.6 to 1.8 B1 ft (d) 36, 9, 0, 9, 36 B2 B1 for 4 correct (e) 13 points plotted P3 curve drawn C1 correct points ft within 1 mm P2 for 11 or 12 P1 for 9 or 10 must be smooth parabola (f) 3.3, 10.9 B1ft x from 3.2 to 3.4, y from 10.0 to 12.0 (a) 70.7 art B2 M1 for 5 x π x 3² / 2 or better (b) 5.05 art B3 M1 for 200 = 5 x π x r² / 2 oe M1 for (r² =) 400 / 5π oe (c) (r =) √2A/5π B3 M1 for any correct x or ÷ of 1 term 2A = 5πr² MA1 for r² = 2A / 5π M1 for square root at end 2 curves drawn 4 Syllabus 0580 and 0581 (a) (i) –16 B1 [15] [8] cao (ii) 7 or 144 or both B1 (iii) 144 B1 cao (iv) √7 B1 cao (b) 2 x 2 x 2 x 5 B2 B1 for 8x5, 2x20, 4x10, 2x4x5, or list 2, 2, 2, 5 (c) 11, 29 17, 23 B1 B1 cao cao © UCLES 2007 9Dwebsite.tk [8] Page 4 6 7 Mark Scheme IGCSE – October/November 2007 (a) (i) 78 B1 cao (ii) 5p + 4e B1 cao (b) (i) 2x + 3y = 57 5x + y = 58 B1 B1 SC1 for different variables Paper 3 (ii) 15x + 3y = 174 x=9 18 + 3y = 57 y = 13 M1 A1 M1 A1 oe, for useful mult. or substitution (2 terms correct) cao oe, for using first answer correctly and sensibly cao www4 ft for M marks only for linear equations in 2 variables (a) (i) 2.60 art or 2.6 B2 M1 for √(3²–1.5²) or better (√6.75) oe (ii) 3.90 art or 3.9 B2 ft M1 for 0.5 x 3 x their(a)(i) (iii) 31.2 art B2 ft M1 for 8 x their (a)(ii) www2 M1 for 9 triangles implied, or 2 x k, or attempted sketch (ii) reasonable sketch B1 shows 3 rectangles, 2 triangles in reasonable proportion (iii) area of "rectangle" height of triangle area of triangle M1 M1 M1 for 16 x 9, 144, 3 x 9 x 16, 27 x 16, 432 for √(9²–4.5²), √60.75, 7.79, 7.8, 3 x (a)(i) ft or trig for 0.5 x height (ft but not 9) x 9, 35.1, 70.2, 70.1 OR M2 for 9 x 3.90, 9 x their (a)(ii), 35.1 , 70.2, 70.1 3 rectangles and 2 triangles, 432 + 70.2 or 70.1 soi if M<3 then add SC3 for 502 art with no wrong working seen (b) (i) 18 total area 502 art 8 Syllabus 0580 and 0581 M1 A2 (iv) 32.4(0) B2 M1 for 540 x 6 or figs 324 (a) (i) 10 / 12. B1 oe 2 sf for decimals and %'s (with sign) throughout (ii) 4 / 12. B1 oe (iii) 12 / 12. B1 oe (b) 10.5 B2 M1 for (10+13+10+8+ ) / 12 or 126 / 12 (c) (i) 12 points plotted B3 B2 for 11, B1 for 10 (ii) ruled line B1 reasonable, at least from 8 to 19 (iii) negative B1 cao © UCLES 2007 9Dwebsite.tk [8] [17] [10] Page 5 9 (a) (i) arc Mark Scheme IGCSE – October/November 2007 Syllabus 0580 and 0581 Paper 3 B1 full arc, centre T, radius 4 cm, must cover whole of town (ii) locus B2 must be accurate perpendicular bisector of PQ must show 2 pairs of arcs SC1 for accurate without arcs or with 2 arcs just oor (iii) R labelled B1 ft if possible (iv) 640 to 700 m B2 ft SC1 for 3.2 to 3.5 cm (ft) (b) locus B2 must be accurate bisector of angle T must show all arcs SC1 for accurate without arcs or with all arcs just oor (c) correct shading B2 must be a quadrilateral dependent on at least SC1 in (a)(ii) and (b) 10 (a) 42, 56 71, 97 B1B1 B1B1 cao cao (b) n (n + 1) oe B2 M1 for attempt at length x width involving n or n'th (n'th + 1) or k (k + 1) where k is any variable (c) 12 B2 M1 for 2 n² – 1 = 287 © UCLES 2007 9Dwebsite.tk [10] [8] UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education MARK SCHEME for the May/June 2008 question paper 0580 and 0581 MATHEMATICS 0580/03 and 0581/03 Paper 3 (Core), maximum raw mark 104 This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began. All Examiners are instructed that alternative correct answers and unexpected approaches in candidates’ scripts must be given marks that fairly reflect the relevant knowledge and skills demonstrated. Mark schemes must be read in conjunction with the question papers and the report on the examination. • CIE will not enter into discussions or correspondence in connection with these mark schemes. CIE is publishing the mark schemes for the May/June 2008 question papers for most IGCSE, GCE Advanced Level and Advanced Subsidiary Level syllabuses and some Ordinary Level syllabuses. 9Dwebsite.tk Page 2 Mark Scheme IGCSE – May/June 2008 Syllabus 0580/0581 Paper 03 0.68 x 450 = 306 2 x 450 + 306 (= 1206) M1 A1 M1 (b) 2814 B3 M1 for 1206 ÷ 6 (implied by 201) or 450 ÷ 6 or 306 ÷ 6 M1 dep for x (6 + 5 + 3) implied by 14 SCM2 for 1206 + 1005 + 603 (c) 4955 B2 M1 for 500 x 9.91 implied by figs 4955 (d) 2320 or 11 20 pm B2 SC1 for 1720 or 1120 seen SC1 for any arrival time + 6 soi 1 (a) dep allow 900 or 450 + 450 SCM3 for 2.68 x 450 (= 1206) [10] translation col.vector 2 -4 2 (a) B1 B1 B1 SC1 for col.vectors 4 -8 or -4 2 or for (2, -4) (b) reflection (in) x = 0 or y axis B1 B1 (c) rotation 90º (anticlockwise) oe (about) origin oe B1 B1 B1 enlargement (scale factor) -2 B1 B1 (centre) origin oe B1 SC1 for enlargement, SF=2, about origin (oe) and rotation of 180 about the origin (oe) [11] 6,17,8,9,11,9 B2 B1 for 4 or 5 correct or for all tallies correct (d) 3 (a) (i) (ii) correct bar chart B1ft ft from their frequency table or tallies (iii) 2 B1ft from their table or chart (iv) 3 B1ft from their table or chart (v) 3.48 B3cao (b) i.e. 1/4, 270 clockwise, - 270 accept (0,0), O 66º B2ft M1 for clear indication of 1x6 + 2x17 + 3x8 + 4x9 + 5x11 + 6x9 ft imp by 209 M1 dep for ÷ 60 M1 for "11" ÷ 60 x 360 or "11" x 6 [10] © UCLES 2008 9Dwebsite.tk Page 3 4 (a) (i) (ii) (iii) (b) Mark Scheme IGCSE – May/June 2008 3x = 14 + 4 oe (x =) 6 M1 A1cao SC2 for 6 www y + 1 = 2 x 5 oe (y =) 9 M1 A1cao SC2 for 9 www 6z - 21 - 2z + 6 (= -9) 4z = 6 z = 1.5 B1 B1ft B1cao (i) p + q = 12 B1 (ii) 25p + 40q = 375 B1 (iii) correct method p=7 q=5 M1 A1 A1 Syllabus 0580/0581 Paper 03 ft their expansion but must be 4 terms multiply and subtract, substitution SC3 for p=7 and q=5 www [12] 5 (a) (b) 6 (a) (b) (i) 43.0 art or 43 B2 (ii) 10.0 art or 10 B2ft M1 for 430 ÷ their (a)(i) ft (i) (length) = 22.2 (width) = 14.8 (height) = 20 B1 B1 B1ft accept length and width interchanged (ii) 6570 art B2 ft ft is their L x W x H from (b)(i) M1 for L x W x H ft (substituted) (iii) 78.5 (%) art B3 ft ft is 5160 ÷ their (b)(ii) x 100 but only if answer < 100 B1 for 12 x 430 or 5160 M1 for 5160 ÷ their (b)(ii) x 100 [12] (i) 63 (ii) 54 (iii) 134 (i) 360 ÷ 8 or 6 x 180 180 - 45 or 1080 ÷ 8 M1 for π x 3.7² ft is 2 x their (a)(ii) B1 B2 cao M1 for 180 - 2 x their (a)(i) soi (may be implied by answer) B2 cao M1 for 360 - (100 + 63 + their (a)(i)) or 197 - their (a)(i) soi (may be implied by answer) MA1 MA1 dependent SC2 for convincing argument © UCLES 2008 9Dwebsite.tk Page 4 Mark Scheme IGCSE – May/June 2008 Syllabus 0580/0581 (ii) octagon drawn accurate M1 A1 (iii) 4.7 to 5.0 B1 (iv) 9.6 B2ft ft is 2 x their (b)(iii) M1 for 0.5 x 4 x their (b)(iii) (v) 76.8 B1 ft ft is 8 x their (b)(iv) Paper 03 closed and not re-entrant angles at A and B equal to 135 +/- 2 degrees and lines BC and AH equal to 4 +/- 0.1 cms [13] 7 (a) (b) (i) tan (QPR) = 10.3 ÷ 7.2 55 (.0) M1 E1 M1 for complete long method (ii) 125 B1 cao (i) 125 - 98 or 180 - ( 98 + 55 ) E1 accept 55 + 98 + 27 = 180 do not accept 180 - 153 (ii) 6.13 art B2cao M1 for 13.5 x sin27 oe (allow full correct long methods) SCM1 for PR (pythag, sin or cos) RS (pythag) then A1 for 4.9 art or SCM1 for PR (pythag, sin or cos) RS(tan) then A1 for 6.4 art. (iii) 37.1 or 37.13 art B1 ft ft is 31 + their (b)(ii) 8.24 to 8.25(1….) B2 ft M1 for their (b)(iii) ÷ 4.5 (c) [9] 8 (a) (b) (i) x+3 B1 (ii) x (x + 3) or x² +3x B1 ft from their (a)(i) (iii) x² +3x = 7 x² +3x - 7 = 0 E1 both lines seen (i) -3, -9, -3 B3 B1, B1, B1 (ii) 8 points correctly plotted smooth curve P3 ft C1 P2ft or 6 or 7, P1ft for 4 or 5 (+/- 1/2 small square) (must go below y = -9) © UCLES 2008 9Dwebsite.tk Page 5 (c) (d) Mark Scheme IGCSE – May/June 2008 Syllabus 0580/0581 (i) 1.5 to 1.6 -4.5 to -4.6 B1 ft B1 ft ft is their intersections with the x-axis (ii) 4.5 to 4.6 B1 ft ft is their positive (c)(i) + 3 (i) correct line (ii) (y =) 2x - 3 L1 Paper 03 long enough to cross y axis (+/- 1/2 small square) B1,B1ft B1 for 2 (as coefficient of x) B1 ft for their intersection with the y-axis [16] Pentagon B1 (i) 61 to 63 B1 (ii) AE = 6.3 to 6.5 cm and DE = 5.7 to 5.9 cm B1 correct arcs seen B1 accept concave polygon SC1 if lengths reversed and with arcs (i) perpen.bisector of BC correct arcs seen B1 B1 +/- 1mm and +/- 1 degree accuracy (ii) bisector of angle ABC correct arcs seen B1 B1 +/- 1 degree accuracy (d) "M" correctly marked B1 dep. on at least first B1 in each part of (c) (e) 2 marks 0.8 (+/-0.1) apart 1.85 (+/-0.1) from A and B B1 B1 9 (a) (b) (c) [11] © UCLES 2008 9Dwebsite.tk UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education MARK SCHEME for the October/November 2008 question paper 0580 and 0581 MATHEMATICS 0580/03 and 0581/03 Paper 3 (Core), maximum raw mark 104 This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began. All Examiners are instructed that alternative correct answers and unexpected approaches in candidates’ scripts must be given marks that fairly reflect the relevant knowledge and skills demonstrated. Mark schemes must be read in conjunction with the question papers and the report on the examination. • CIE will not enter into discussions or correspondence in connection with these mark schemes. CIE is publishing the mark schemes for the October/November 2008 question papers for most IGCSE, GCE Advanced Level and Advanced Subsidiary Level syllabuses and some Ordinary Level syllabuses. 9Dwebsite.tk Page 2 Mark Scheme IGCSE – October/November 2008 Syllabus 0580 and 0581 Paper 03 Abbreviations art cao ft oe soi SC answer rounding to correct answer only follow through after an error or equivalent seen or implied Special Case Qu 1 (a) (i) Answers 3 5 × 30 000 or 30 000 − (ii) (b) (i) (ii) (iii) 2 5 Part Marks Must see evidence of fractions × 30 000 Aida $7500 Bernado $6000 Christiano $4500 W3 M1 for 5 or5+44+or3 3 × 18000 A1 for 1 correct answer 10 500 W2 M1 for W2 W1ft W1 for 13 60 ($)13 000 2 (a) (i) (ii) 52.3 art 24.4 art (iii) 17.0 art × 30 000 or 0.35 × 30 000 35 100 6500 30000 seen or other ‘correct’ fraction. W3cao M1 for 15 500 − 12500 or 15500 12500 × 100 '3000 ' M1 for 12500 × 100 or ‘124’− 100 W2cao M1 for 55cos18° W2 ft M1 for ‘52.3’tan25°. Ft their ED 24 (c) 3 Mark M1 W2cao M1 for 55sin18° or √(55 2 − ‘52.3’ 2 ) or ‘52.3’ tan18° Long methods, e.g. sine rule must be explicit and ‘correct’. (b) ‘24.4’ − ‘17.0’ (= 7.4) (c) (i) 14.1 art W2cao M1 for √( 12 2 + 7.4 2 ) or correct long methods 12 ÷ cos (tan −1 712.4 ) or 7.4 ÷ sin(tan −1 712.4 ) (ii) 31.7 art W2cao M1 for tan (FBA) = 712.4 oe or sin FBA = ' 7FB.4 ' or cos FBA = M1 W1 W1 W2 (a) (i) 12 (ii) 7 (iii) 8.5 (b) 10 points correctly plotted W3 Allow for clear attempt to find FD − AD. 12 ' FB ' M1 for Attempt at ordering the data. W2 for 8 or 9 points correctly plotted W1 for 6 or 7 points correctly plotted © UCLES 2008 9Dwebsite.tk Page 3 Mark Scheme IGCSE – October/November 2008 Qu Answers (c) (i) 8.58(3…) or 8.6 Mark W2 W1 (d) (i) Line of fit 5 90° (Angle in a) semi-circle (c) 68° (Angles in a )triangle (=)180° (d) 68° Alternate or Z (angles) (a) 6 W1ft W1 Line must indicate understanding Ft is180 −( their (a) + their (b)) or alternate segment (theorem) W1cao W1 Allow Z correctly placed on the diagram. W1 W2 W1 W1ft (ii) Line from 09 30 to 0945 Line to (‘10 30’, 18) M1 for 15 20 SC1 for 10 15 accuracy ± 1mm W1 (i) 20 W1ft (ii) Line (11 15, 0) to ( their 11 35, 18) 6 M1 for attempt at totalling data ÷ 12 Allow method if 1 error or omission, but must see an attempt (or judge implied) to divide by 12 W1cao W1 (b) (i) 10 30 (c) Part Marks W1 W1cao Degree symbol not essential throughout question. Allow perpendicular for 90° W1 (ii) Negative 22° (a) Tangent (and) radius/ diameter (meet at) 90° (b) Paper 03 W1ft (ii) Plotted (their (c)(i), 38.8) 4 Syllabus 0580 and 0581 ft their time in (c)(i) provided in minutes and Y 45 Line (11 15, 0) to (11 [15 + ‘20’], 18) (d) (i) Line (12 00,18) to (12 45,0) (ii) 24 W1 W2 (a) (i) ( y =)13 W2 M1 for (2y =) 75 − 7 × 7 (ii) ( x =) 9 W2 M1 for 7x = 75 − 12 or −7x = 12 − 75 W2 M1 for 7x + 2y = 75. 7x = 75 − 2y or −7x = 2y − 75 or −7x − 2y = −75 (b) 75 − 2 y 7 or 2y−75 −7 M1 for 18 ÷ 0.75 Allow 18 ÷ 45 × 60 for method © UCLES 2008 9Dwebsite.tk Page 4 7 Mark Scheme IGCSE – October/November 2008 Answers Mark W3 (x =) 11, (y =) −1 (a) 3, −3, 3 (b) 8 correctly plotted points Smooth curve W3ft W1 W2 for 6 or 7 points, W1 for 4 or 5 points Half square accuracy must go below line y = −3 (c) ( −0.5, −3.25) W2ft W1 for one coordinate correct Ft their graph but −1 < x < 0 and y < −3 Allow calculated if exact values (W2 or W1) W3 (b) (c) (d) 4 (AB =) , (BC =) 2 Part Marks M1 for multiply and correct add/subtract or correct substitution. A1 for x = 11 or y = −1 W1 for each correct value W1cao Half square accuracy W1ft Ft any vertical line only (a) (i) (−3, −2) (ii) 9 Paper 03 Qu (c) (d) (i) Line x = −0.5 drawn (ii) x = −0.5 oe 8 Syllabus 0580 and 0581 W1 − 3 2 (1, −5), (5, −3), (2, −1) W1, W1 W2 (i) P( 5, 2), Q( −1, 6) W1, W1 (ii) Enlargement (Scale factor) 2 (Centre ) A or (−3, −2) W1 W1 W1ft ( 0, −4) marked Joined to A and B W1 W1ft 2 SC1 for and 4 2 −3 W1 for 2 correct points plotted Must join points, with straight lines, for both marks. Ft their (a)(i) Zero if not a single transformation Their image of C joined to A and B. (a) (i) 99 to 101 (metres) (ii) 103° to 105° W1 W1 (b) (i) Bisector of angle ABC (45 ± 1 to BC) with arcs Bisector of AD with arcs ±1mm from centre of AD and 89° to 91° to AD. W2 W1 correct bisector without arcs W2 W1 correct bisector without arcs. Bisector about 89° to 91° to AD by eye and centre within 2mm by eye. (ii) Closed region T indicated W1 Dependent on at least W1 for each bisector. Allow T omitted if region is clear. © UCLES 2008 9Dwebsite.tk Page 5 Qu (c) 10 (a) (b) (c) (d) Mark Scheme IGCSE – October/November 2008 Answers Lines parallel to and 3cm (±0.1cm) from AB and BC. Lines joined by arc, centre B. radius 3cm (±0.1cm) Mark W1 Syllabus 0580 and 0581 Paper 03 Part Marks W1 (Lines) 10 and 13 (Dots) 8 and 10 W1 W1 (Lines) 31, (Dots) 22 W1, W1 (i) 3n + 1 oe SC1 for jn + 1 or 3n + k W2cao where j and k are integers. j ≠ 0 (ii) 2n + 2 oe SC1 for jn + 2 or 2n + k W2cao where j and k are integers. j ≠ 0 n − 1 or 1 − n W2ft M1 for ‘(3n + 1)’ − ‘(2n + 2)’ or reversed Ft and M1 dependent on two linear algebraic expressions © UCLES 2008 9Dwebsite.tk UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education MARK SCHEME for the May/June 2009 question paper for the guidance of teachers 0580, 0581 MATHEMATICS 0580/03, 0581/03 Paper 3 (Core), maximum raw mark 104 This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began, which would have considered the acceptability of alternative answers. Mark schemes must be read in conjunction with the question papers and the report on the examination. • CIE will not enter into discussions or correspondence in connection with these mark schemes. CIE is publishing the mark schemes for the May/June 2009 question papers for most IGCSE, GCE Advanced Level and Advanced Subsidiary Level syllabuses and some Ordinary Level syllabuses. 9Dwebsite.tk Page 2 Mark Scheme: Teachers’ version IGCSE – May/June 2009 Syllabus 0580, 0581 Paper 03 Abbreviations cao ft oe SC www correct answer only follow through after an error or equivalent Special Case without wrong working Qu 1 Answers (a) (i) 6000 ÷ (7 + 5 + 3) Multiply by 7 (ii) (Stephano) 2000 www (Tania) 1200 www (b) (i) ($)47040 (ii) ($)28224 Mark Part marks 1 M1 6000 ÷ clear attempt at total 1 M1 Dependent on first mark. 1 1 Must be clearly Stephano. Must be clearly Tania. 2 M1 1.40 × 12 × 2800 2ft M1 3 5 × ‘47040’ or 0.6 × ‘47040’ (c) ($)1200 2 M1 5000 × 8 × 3 ÷ 100 SC1 for final answer 6200 (d) ($) 14292 4 M2 12000 × (1.06)3 Or M1(12000+12000 × 0.06) × 0.06 M1 dep. Correct method for the next 2 years A1cao ($)14292(.19(2)) W1ft Their answer rounded to the nearest dollar. If M0 then maximum SC2 for ($) 2292 or SC1 for ($) 2292.2 or ($) 2292.19(2) or ($) 2300 © UCLES 2009 9Dwebsite.tk Page 3 2 (a) Mark Scheme: Teachers’ version IGCSE – May/June 2009 Syllabus 0580, 0581 1 One-third of 360 oe (b) (i) 30 1 (ii) 90 1 (iii) 60 1ft 90 − their (b) (i) 2ft M1 30cos (b) (i) or 30sin(90 − (b) (i)) or equivalent full method (c) (i) 26(.0) or 25.98(……) (d) (ii) (c) (i)sin (b) (iii) oe 22.5 1 1 M1 for correct full method for AD W1 dependent on M1 48.36 to 48.4 2 M1 tan (AED) = or cos (AED) = sin(AED) = 3 Paper 03 (a) Horizontal line from (08 30, 30) to (09 30, 30) Line from (their 09 30, 30) to (10 15, 380) Horizontal line from their (10 15, 380) to (10 50, their 380) Line from their (10 50, 380) to (11 30, 420) (b) (i) 0.75 or 3 4 hour (ii) 466 to 467 (c) 35 22.5 20 20 20 2 + 22.5 2 or 22.5 20 2 + 22.5 2 W1 W1ft W1ft Only ft from their 09 30 Ft incorrect 10 15 and 380 W1ft Ft incorrect 10 50 and 380 1 2cao M1 for 350 ÷ their (b) (i) 3cao W1ft (air) 3 h 30 mins oe 210 min W1(train) 2 h 55 mins oe 175 min © UCLES 2009 9Dwebsite.tk Page 4 4 Mark Scheme: Teachers’ version IGCSE – May/June 2009 (a) (i) x − 4 Syllabus 0580, 0581 Paper 03 1 1 (ii) 2x + 5 (iii) ‘2x + 5’ = 3 × ‘(x − 4)’ oe 1ft 3cao (iv) (x =) 17 www Allow x + x + 5 Only ft linear expressions in x. M1 ‘3x − 12’ M1 indep px = q Reducing their equation to a single term in x and a single constant. (b) 3 (x =) 2, (y =) 1.5 M1 for complete correct method A1 for 1 correct answer ww both correct W3 ww one correct W0 Multiply and add/subtract. 2 terms correct. Eliminate x: subtract + 2 terms right Eliminate y: add + 2 terms right. Substitution M1 for 3(8 − 4y) − 2y = 3 or x + 4 3 x −3 = 8 or 3x − 2 8− x = 3 or ( ) ( ) 2 4 ( ) + 4y = 8 or ( ) = 8 − 4y or ( ) = ( ) or better. 3− 2 y 3 3 x ±3 2 5 3+ 2 y 3 8± x 4 Reflection in y axis or x = 0 2 W1 transformation W1 Line 8 Translation or 8 right (only) 0 2 W1 transformation W1 vector or description (b) Correct reflected pentagon 2 SC1 A reflected in a horizontal line, not the x axis (c) Correct rotated pentagon 2 SC1 B rotated anti-clockwise 90° about the origin or 90° clockwise about any other point. (d) Rotation, 180, (About) origin oe 3 W1 rotation, W1 180, W1 origin SC3 Enlargement (SF) –1 origin Accept (0, 0) for origin. (e) Correct enlarged pentagon 2 W1 for any enlargement of A with a scale factor of 12 . (a) © UCLES 2009 9Dwebsite.tk Page 5 6 Mark Scheme: Teachers’ version IGCSE – May/June 2009 Syllabus 0580, 0581 (a) Octagon 1 (b) 135 2 M1 for 180 − (360 ÷ 8) oe W1ft 67.5 or 22.5 correct values, (c) (i) Angle OAB = their (b)/2 or angle AOM = 90 − their (b)/2 4 × tan ‘67.5’ or 4 ÷ tan ‘22.5’ 9.656… or 9.66 M1 A1cao Dep on W1 and M1 2 (ii) 38.6 to 38.64 (iii) 308.8 to 309.12 (d) Paper 03 3705.6 to 3709.44 or 3710 (e) (i) 2400 (ii) 35.2(3…) to 35.3(0…) M1 for 0.5 × 8 × 9.66 1ft Their (c) (ii) × 8 1ft Their (c) (iii) × 12 2cao M1 for 3 × 2 × 2 × 200 3cao M1 for their ((d) − (e) (i)) soi. M1 for (d)−(d)(e)(i) × 100 Or M2 for ( ) × 100 1 (e)(i) (d) SC1 for Answer 64.7 to 64.77 7 (a) x 0 1 2 3 4 5 6 7 8 y 0 8 14 18 20 20 18 14 8 (b) Their 10 points correctly plotted, within half a square. Smooth curve through the 10 correct points P3ft (x =) 4.4 to 4.6 (y =) 20.1 to 20.5 1cao 1cao (c) 9 0 (d) (i) Ruled line y = 6 3 C1 W2 for 4 correct W1 for 3 correct P2ft for 8 or 9 correct P1ft for 6 or 7 correct Shape must be correct and the curve goes above y = 20. 1 (ii) 8.1 to 8.5 Must be to 1 decimal place 0.5 to 0.9 Must be to 1 decimal place 1cao 1cao SC1 for both correct but not to 1dp e.g. 8.27 and 0.73 © UCLES 2009 9Dwebsite.tk Page 6 8 Mark Scheme: Teachers’ version IGCSE – May/June 2009 5, 126, (a) (b) (i) 3, 90 5, 6, 4, 2 (ii) Blocks ‘correct’ heights No gaps. (c) (i) 10 points plotted correctly Syllabus 0580, 0581 Paper 03 1 1, 1 SC1 for both angles incorrect but totalling 216°. 2 W1 for 3 or 4 correct or left as tallies and all correct. 2ft W1 for only 1 incorrect SC1 All correct but small gaps between or full horizontal lines only 3 W2 for 8 or 9 correct W1 for 6 or 7 correct On vertical age line (±1 mm) and between (or on) correct horizontal lines. (ii) Zero oe 1 (allow weak (slight) negative) 3 20 2ft (iii) oe or 0.15 or 15% Ft numerator only W1 for their3 k ≥ 3 k 9 (a) (i) −8, −13 1cao 1ft Ft sixth term 5 less than the fifth (ii) Subtract 5 oe 1 (iii) −5n + 17 2 W1 for jn + 17 or –5n + k where j and k are integers, j ≠ 0 W1 for jn − 8 or 5n – k where j and k are integers, j ≠ 0 (b) 5n − 8 2 (c) 9 www 1ft Ft two linear expressions only © UCLES 2009 9Dwebsite.tk UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education MARK SCHEME for the October/November 2009 question paper for the guidance of teachers 0580 MATHEMATICS 0580/03 Paper 3 (Core), maximum raw mark 104 This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began, which would have considered the acceptability of alternative answers. Mark schemes must be read in conjunction with the question papers and the report on the examination. • CIE will not enter into discussions or correspondence in connection with these mark schemes. CIE is publishing the mark schemes for the October/November 2009 question papers for most IGCSE, GCE Advanced Level and Advanced Subsidiary Level syllabuses and some Ordinary Level syllabuses. 9Dwebsite.tk Page 2 Qn 1 2 3 Mark Scheme: Teachers’ version IGCSE – October/November 2009 Syllabus 0580 Paper 03 Answers Mark Notes (a) (i) 1/5 1 Accept 0.2 or 20% (ii) 2/5 1 Accept 0.4 or 40% (iii) 0 1 Accept 0/5 or 0% (b) (i) 6 1 cao (ii) 1 1 cao (iii) 2.6 (0) www 3 M1 for 1 × 8 + 2 × 4 + 3 × 5 + 4 × their (b) (i) + 5 × 2 M1 dep for ÷ 25 or their 25 (iv) heights 8, 4, 5, , 2 6 or ft height for their (b) (i) 2 1 ft SC1 for one error, or small gaps (a) (i) 15.7 art 2 M1 for 2 × π × 2.5 (ii) 19.6 art 2 M1 for π × 2.52 (iii) 14.6 art 2 M1 for π × (2.5 + 0.8)2 (b) Within range 7840 to 7860 2 ft M1 for their (a) (ii) × 0.4 × 1000 (c) 31 3 ft M1 for their (b) ÷ 250 soi A1 ft for 31.4 art W1 for their answer correctly rounded (a) (i) 4.5 2 M1 for 15 × 3 / (7+3) 3 1 ft Their (a) (i) ÷ 2 and rounded up 8.14 3 M1 for 100 – 12 soi M1 for 9.25 × their 88 / 100 (ii) 32.56 1 ft 4 × their (b) (i) (iii) 46.25 1 cao (iv) 8.75(6…) or 8.76 3 M1 for (their (ii) + their (iii)) soi 2nd M1 dep for ÷ (4 + 5) soi (ii) (b) (i) © UCLES 2009 9Dwebsite.tk Page 3 4 Syllabus 0580 Paper 03 Isosceles 1 Condone spelling (ii) DNC 1 Condone order of letters (iii) 70° 1 cao 49.4° or 49°24′ art 2 M1for inv tan (7/6) 9.22 art 2 M1 for √(62 + 72 ) soi (e.g. √85) (c) 12.2 art 3 M2 for 7/sin35 (d) 42.8(4….) or 42.85 2 ft M1 for 2 × [their (b) (ii) + their (c)] oe (a) 2 1, 1, 1 (b) seven points correctly plotted smooth correct curve through 7 correct points P3ft C1 5 or 6 P2ft, 3 or 4 P1ft (c) (i) (–2, –7) 1 cao –4.6 to –4.75 and 0.6 to 0.75 1 1 cao cao correct point marked 1 Condone lack of label (ii) ruled line from their A to their (0, –3) 1 Continuous line of this minimum length (iii) –4 / 2 oe 2 M1 for attempt at gradient or SC1 for 2 oe or –1 oe from correct line (iv) y = –2x – 3 oe 2 SC1 for y = kx – 3 oe or y = –2x + k oe or y = their (d) (iii)x + k oe (a) (i) (b) (i) (ii) 5 Mark Scheme: Teachers’ version IGCSE – October/November 2009 (ii) (d) (i) –6 2 © UCLES 2009 9Dwebsite.tk Page 4 6 7 Mark Scheme: Teachers’ version IGCSE – October/November 2009 Syllabus 0580 Paper 03 (a) x+4 1 (b) 3x 1 (c) (i) x + x + 4 + 3x 5x + 4 M1 ft A1 cao (ii) Their c (i) ÷ 3 = 28 or their c (i) = 28 × 3 1 (iii) (x = ) 16 2 M1 for 5x = 84 – 4 or 5x = 80 or x = 80/5 (d) 48 or 3 × their x 1 ft Ft is 3 x (c) (iii) (e) 84% 2 M1 for 63 / 75 × 100 1 cao soi ft is x + (a) + (b) 5x + 4 www scores both marks (a) 4 (b) 4 correct lines drawn, accept reasonable 2 freehand (c) 2600 3 M1 for 2800 × 1.75 or 4900 M1 for their 4900 – 2300 (d) 3100.40 2 M1 for 2300 × 1.348 (e) 5962.32 3 M2 for 5000 × (1.092)2 SC1 for 5000 × (1.92)² or full equiv. or 18432 © UCLES 2009 9Dwebsite.tk SC1 for 2 correct lines Page 5 8 Syllabus 0580 Paper 03 (a) (i) Correct X 2 2 SC1 for translation of − 7 (ii) Correct Y 2 SC1 for rotation through 90 clockwise Or 90 anticlockwise about any point (b) (i) Correct Z1 2 SC1 for reflection in y axis Or in any horizontal line (ii) Correct Z2 2 ft strict ft reflection of their Z1 if possible SC1 for reflection in y = 4 or any vertical line 1,1 W1 transformation, W1 full description SC2 for Enlargement sf = –1 coe (4, 0) (iii) 9 Mark Scheme: Teachers’ version IGCSE – October/November 2009 8 Translation , 4 OR Rotation , through 180 about (4, 0) (a) 13 21 10 15 1 1 1 1 cao cao (b) 43 28 1 1 cao cao (c) (i) ½×5×6 = 15 seen 1 1dep accept ½ × 5 × (5 + 1) ½ × 20 × 21 = 210 1 1 accept ½ × 20 × (20 + 1) accept 210 www for both marks (k =) –1 2 M1 for 7 = 3² + k × 3 + 1 oe (ii) (d) © UCLES 2009 9Dwebsite.tk