SCHECK HILLEL COMMUNITY SCHOOL Students Entering Precalculus Honors & AP Precalculus 2023 Summer Assignment Dear Student, Welcome to Precalculus Honors and AP Precalculus. These courses are designed to prepare you for AP Calculus. You will master higher algebraic manipulations, function analysis, and trigonometry. Every topic will be interpreted verbally, numerically, analytically, and graphically, and then analyzed via these lenses with increasing layers of depth and rigor. You will apply conceptual understanding of problems and use your mathematical reasoning to solve real-world problems. You are responsible for completing this packet before the start of classes in August. The work in this packet has been designed to reinforce the skills you have previously learned. It is strongly recommended that you complete a portion of this packet each week of your summer vacation. Do not leave it all for the end. In this way, the work will not overwhelm you. Helpful Websites: KhanAcademy.org VirtualNerd.com (Algebra 2) PurpleMath.com Name: ________________________ Class: ___________________ Date: __________ ID: A Honors PrecalculusSummer Summer Packet AP Pre-Calculus Packet Please show all work in the spaces provided. The answers are provided at the end of the packet. Algebraic Manipulation 1. Evaluate 3x − y if x = 5 and y = −3 3(x − y) 6. Subtract (−3g 2 + 2g − 9) from (g 2 − 4g − 6) . . 2. Multiply (−x)(−3y)(−5z) 7. Multiply (6n − 3)(5n − 7) Ê 2y ˆ Ê y ˆ Ê y + 3 ˆ˜ ˜˜ 3. Simplify: ÁÁÁ x ˜˜˜ ÁÁÁ 2x ˜˜˜ ÁÁÁ x Ë ¯Ë ¯Ë ¯ . . 4. 8. Expand (3x 4 − 7y 3 ) 2 5x −3 y 2 x 5 y −1 z 0 ⋅ (2xy 3 ) −2 xy . 9. Multiply . 5. Simplify 18xy 2 7a b 3 2 ˆÊ ˆ ÊÁ 2 Á x + x − 3 ˜˜ ÁÁ 3x 2 − x + 3 ˜˜ ¯Ë ¯ Ë 2 ÷ 12x y 35a 2 b . . 1 Name: ________________________ ID: A 11. Factor completely 10. Factor completely a) a 2 − 6a − 40 a) −5x 4 y 2 + 20xy 3 + 15xy 4 b) 6y 2 + 13y − 5 b) 3x 3 + x 2 − 15x − 5 c) 12m3 n − 75mn c) 20x 2 − 125y 2 d) 49x 2 − 100y 2 d) 4x 2 − 12xy + 9y 2 e) 6xp + 42x − 5yp − 35y e) x 2 − 6x + 9 − 4y 2 . 2 Name: ________________________ ID: A 15. Divide using synthetic division 12. Factor the expression completely. 125a 3 − 8b 6 (3x 5 + 5x 4 + x + 5) ÷ (x + 2) . 13. Factor the expression completely. ˆ4 ˆ5 Ê Ê 4 ÁÁ x 2 + 5 ˜˜ (3x)(x − 1) 4 + ÁÁ x 2 + 5 ˜˜ (9)(x − 1) 3 ¯ ¯ Ë Ë . ˆ Ê ˆ Ê 16. Divide: ÁÁ x 5 + x 4 − 8x 3 + x + 2 ˜˜ ÷ ÁÁ x 2 + x − 7 ˜˜ ¯ Ë ¯ Ë . 14. Factor the expression completely. 1 1 − ÁÊÁ x 2 + 4 ˆ˜˜ 2 + 2 ÁÊÁ x 2 + 4 ˜ˆ˜ 2 ¯ ¯ Ë Ë . 3 Name: ________________________ 17. Simplify ID: A 21. Simplify. 6y + 30 2 y − 25 1 x x 1− y 1+ . 18. Simplify . a2 − x2 a ⋅ 2 3x − 3a a 22. Simplify the compound fractional expression. 5 4 − x−1 x+1 x 1 + x−1 x+1 . 19. Simplify. . (4w 2 − 3wy)(w + y) 2 23. Simplify. 2 (3y − 4w)(5w − y ) x−1 5 − 6x − 18 4x 2 − 14x + 6 . 20. Simplify x 3 − 64 x 2 − 16 ÷ x 3 + 64 x 2 − 4x + 16 . 24. Perform the subtraction and simplify. x 1 3 − − x − x − 20 x + 4 x − 5 2 . . 4 Name: ________________________ ID: A 26. Evaluate without a calculator: 25. Simplify a) −3 3 −3 + 2 3 162 + 3 3 ÊÁ 1 ˆ˜ −4 a) ÁÁÁÁ − ˜˜˜˜ Ë 2¯ 81 Ê ˆ b) 4 15 ÁÁÁ 4 − 3 5 ˜˜˜ Ë ¯ b) − 32 − c) 27 Ê c) ÁÁÁ Ë ˆÊ 5x ˜˜˜ ÁÁÁ ¯Ë 3+ 3− 3 5 5 3 ˆ 5x ˜˜˜ ¯ d) .0049 3 2 3 2 d) 2m2 ⋅ 4m ⋅ 4m−2 . ÊÁ 3 ˆ˜ ÁÁ 2 ˜˜ Á ˜ e) ÁÁÁ 3p ˜˜˜ ÁÁ ˜˜ Á ˜ Ë ¯ −2 27. Simplify a) ÊÁ 1 ÁÁ ÁÁ 2 −2 ÁÁ x y f) ÁÁÁ −7 ÁÁ ÁÁ ÁÁ yx 4 Ë g) x y 243a 20 b 25 ˆ˜ 4 ˜˜ ˜˜ ˜˜ ˜˜ ˜˜ ˜˜ ˜˜ ˜ ¯ ÊÁ 1 ˆ˜ ÁÁ 2 ˜˜ ÁÁ ˜ ÁÁ x y 2 ˜˜˜ ÁÁ ˜˜ Á ˜ Ë ¯ 2 5 b) 2 −5 4 1 2 . 5 3 18a 2 b ⋅ 3 3 12ab 5 Name: ________________________ ID: A 30. Simplify each expression and write the result in the form a + bi. 28. Rationalize the denominator and simplify a) 2a b 4 b) a) 6 − (2 + 9i) + (−1 + 4i) 3 4 4 b) (7 − i)(3 + 3i) 5 27 c) (5 − 7i) 3 c) d) 5− 6 d) 3−i 2 + 3i e) −5 − 3i −4i x y 2 5 . 29. Rationalize the numerator and simplify a) 3+ 4 f) i 1795 7 . b) x+3 −5 3x − 66 . 6 2 Name: ________________________ ID: A Equations and Inequalities 31. Solve 3(x + 2) = 1 (12x + 4) − 5x 4 34. Solve the equation. |3x − 5| = 7 . . 35. Solve the equation for the indicated variable: 32. Solve the equation. y+1 2 1 y + (y − 4) = 5 2 4 a) ax + b = 11 , solve for x. cx + d b) x x = c − , solve for x. a b c) x x = c − , solve for b. a b . 33. Solve. 4 5 23 + = x + 3 6 18 . 7 Name: ________________________ ID: A 37. Solve by completing the square. 36. Solve each equation: x 2 + 8x + 22 = 0 a) n(9 − 3n)(2n + 5) = 0 b) x 2 + 8x − 20 = 0 . 38. Solve the equation by completing the square. 2x 2 − 12x − 7 = 0 c) 20x(x − 1) = 42 − 9x d) −8x 2 + 46x − 30 = 0 . 39. Solve by using the Quadratic Formula. x 2 − 6x = −10 e) 3x 2 − 6x = 10 . 8 Name: ________________________ ID: A 43. Solve a) x+2 +4= 7 40. Find all real solutions of the equation. x 6 − 9x 3 − 10 = 0 . b) 2 = 41. Find all solutions of the equation and express them in the form a + bi. 25x 2 + 16 = 0 . . 42. Solve 1 3 2(6x − 3) − 4 = 0 . 9 3b − 2 − 10 − b Name: ________________________ ID: A 46. Solve the nonlinear inequality. Express the solution using interval notation and graph the solution set. 44. Solve the inequality. Graph the solution on a number line. |3x + 9| ≥ 6 x 2 + 3x > 10 . . 47. Solve the nonlinear inequality. Express the solution using interval notation and graph the solution set. 45. Solve and graph your answer on a real number line: |x − 3 | − 2 < 6 x 1 x+1 − ≤ 3 x−2 4 . 10 Name: ________________________ ID: A Lines and Coordinate Geometry 48. Graph the line of each equation: 49. Find the slope of: a) x + 3y = 6 a) a line passing through (-4, 4) and (2, -5) b) a line parallel to y = 2x + 7 c) the line whose equation is 2x − 3y = 12 b) y = −2x + 4 d) the line whose equation is y = −5 e) a line perpendicular to 6x + 5y = 9 . 50. Determine whether the lines are parallel, perpendicular, or neither. Explain your reasoning. c) x = 3 2x + 3y = 12 3x + 2y = 24 11 Name: ________________________ ID: A 53. Solve the system of equations by graphing. 51. Find an equation, in point-slope form, of the line that satisfies the given conditions. 2x + 3y = −27 11x − 3y = −12 Through (–1, –11); perpendicular to the line passing through (3, 1) and (7, –1). Then, rewrite the equation in standard form. . 52. Solve the system of equations by substitution 8x − 2y = 10 3x − y = 9 . 54. Solve the system of equations by elimination 2x − 3y = 6 9y − 6x = 9 12 Name: ________________________ ID: A 57. Find the solution set for the following system of inequalities. 55. Solve they system of equations by any method. 0.6x + 1.6y = 2.8 x + 2y ≤ −4 −0.05x + 0.08y = −0.02 3x − 2y > −4 . 56. Solve the system of equations by any method. 2 5 1 x+ y= 3 6 4 58. A pair of points is graphed. 1 1 −1 x− y= 5 10 10 (a) Find the distance between them. . (b) Find the midpoint of the segment that joins them. 13 Name: ________________________ ID: A 60. Find the center and radius of the circle. 59. Prove whether or not the points A(4, 3), B(2, 6), C(7, 5), and D(5, 8) form a square. x 2 + y 2 − 6x + 4y − 3 = 0 (a) The center is (b) The radius is (c) Graph and label important points (d) Domain: Range: . . 14 Name: ________________________ ID: A Functions 62. The graph of a function g is given. 61. If f(x) = −2x 2 + x + 3 , evaluate each of the following: a) f(−2) b) f(3m) (a) Find g(–5). __________________ c) f(p 5 ) (b) Find g(–3). __________________ (c) Find g(–1). __________________ (d) Find g(1). __________________ (e) Find g(3). __________________ (f) Find the domain of g. __________________ d) f(x + h) (g) Find the range of g. __________________ (h) Estimate the values of x for which is g(x) = −1 . 15 Name: ________________________ ID: A 63. Consider the following function: f(x) = 3x 2 − 12x + 7 64. Consider the following function: f(x) = −2x 2 − 12x − 14 a) Write the quadratic function in vertex form. a) Write the quadratic function in vertex form. b) State the vertex and whether the graph has a minimum or maximum. b) State the vertex and whether the graph has a minimum or maximum. c) State the equation of the axis of symmetry. c) State the equation of the axis of symmetry. d) Find the x intercepts and approximate the values. d) Find the x intercepts and approximate the values. e) Find the y intercept e) Find the y intercept f) Graph using all the points. f) Graph using all the points. 16 Name: ________________________ ID: A 68. Sketch the graph of the function using a table of values (hint: find the domain first). 65. Find the domain of the function. h(x) = 8x − 7 f(x) = − x + 2 + 3 . 66. Find the domain of the function. f(x) = x+9 x2 − 4 State the domain and range. . . 67. Find the domain of the function. g(x) = x 2 − 4x − 32 17 Name: ________________________ ID: A 69. Evaluate the piecewise defined function at the indicated values. ÔÏÔÔ 2 ÔÔÔ x + 4x ÔÔ f(x) = ÌÔ x ÔÔ ÔÔ −9 ÔÔÓ if x ≤ −3 if −3< x ≤ 1 if x>1 70. Sketch the graph of the piecewise defined function. ÏÔÔ if x < −1 ÔÔ 1 ÔÔ ÔÔ 2 f(x) = ÔÌ x if − 1 ≤ x ≤ 1 ÔÔ ÔÔ −x + 3 if x > 1 ÔÔÓ (a) Evaluate f(−4) . ÁÊ 7 ˜ˆ (b) Evaluate f ÁÁÁÁ − ˜˜˜˜ . Ë 2¯ (c) Evaluate f(−3) . . (d) Evaluate f(0) . (e) Evaluate f(35) . . 18 Name: ________________________ 71. f(x) = x−1 2x + 1 g(x) = x 5 ID: A and 72. Find the inverse of each function. h(x) = 3x − 5 a) f(x) = Given the functions f, g, and h above, find the following: 3x − 7 12 − 5x a) ÊÁË g û f ˆ˜¯ (x ) b) ÊÁË f û h ˆ˜¯ (x ) b) g(x) = 3x 2 + 24x − 1 . c) ÊÁË h û f û g ˆ˜¯ (x ) . 19 Name: ________________________ ID: A Problem Solving You must use an ALGEBRAIC process for all of the word problems. Correct answers obtained by guess-and-check will not obtain full credit. 73. Find four consecutive odd integers whose sum is 464. 75. An orange has 15 calories more than a grapefruit. Twenty oranges and ten grapefruits have 1800 calories together. Jim ate three oranges and half a grapefruit. How many calories did Jim eat? . . 76. A sports club publishes a monthly newsletter. Expenses are $0.90 for printing and mailing a copy, plus $600 total for research and writing. Write a function that represents the total monthly cost of publishing the newsletter and use it to determine the cost of sending 1000 copies. 74. The product of 3 and a number, decreased by 8, is the same as twice the number, increased by 15. Find the number. . . 20 Name: ________________________ ID: A 79. Find the value of x. Then, find the perimeter of 77. A company manufactures and sells small weather radios. If the cost of producting the radio can be expressed as C(x) = 10,000 + 30x and the revenue produced from the sales can be expressed as R(x) = 50x , how many radios must be produced and sold for the company to make a profit? (If you don’t know the meaning of a term, look it up!) the triangle. . 80. Find the value of x in each problem. a) . 78. Five times the supplement of an angle is 630° more than its complement. Find the angle, its supplement, and its complement. b) . . 21 Name: ________________________ ID: A 81. The area of a triangle is 72 in2 and the base is 8 83. Solve the right triangle. in. Find the height. (a) Find b. Please give the answer to two decimal places. . 82. In the figure below, find a polynomial expression that represents the area of the shaded region. (b) Find r. Please give the answer to two decimal places. (c) Find m∠A. . . 22 Name: ________________________ ID: A 84. Phyllis invested $13,000, a portion earning a 1 simple interest rate of 4 % per year and the rest 2 earning a rate of 4% per year. After one year the total interest earned on these investments was $555. How much money did she invest at each rate? 86. A cylindrical can has a volume of 90π cm3 and is 10 cm tall. a) What is its diameter? b) If the can has a bottom, but no top, what is its sufrace area? 1 __________ is invested at 4 % 2 __________ is invested at 4% 85. A wire 230 in. long is cut into two pieces. One piece is formed into a square and the other into a circle. If the two figures have the same area, what are the lengths of the two pieces of wire (to the nearest tenth of an inch)? . __________ in. 23 ID: A Honors Precalculus SummerPacket Packet AP Pre-Calculus Summer Answer Section NUMERIC RESPONSE 1. 3 / 4 2. −15xyz 3. 2x 4. 4y + 3 5 4x 11 y 4 15y 2 5. 2bx 6. 4g 2 − 6g + 3 7. 30n 2 − 57n + 21 8. 9x 8 − 42x 4 y 3 + 49y 6 9. 3x 4 + 2x 3 − 7x 2 + 6x − 9 10. a) (a − 10) (a + 4) b) ÁÊË 3y − 1 ˜ˆ¯ ÁÊË 2y + 5 ˜ˆ¯ c) 3mn (2m − 5) (2m + 5) d) ÁÊË 7x − 10y ˜ˆ¯ ÁÊË 7x + 10y ˜ˆ¯ e) ÁÊË 6x − 5y ˜ˆ¯ ÁÊË p + 7 ˜ˆ¯ ˆ ˆ Ê Ê 11. a) 5x ⋅ y 2 ⋅ ÁÁ −x 3 + 4y + 3y 2 ˜˜ b) (3x + 1) ⋅ ÁÁ x 2 − 5 ˜˜ c) 5(2x − 5y) ⋅ (2x + 5y) ¯ ¯ Ë Ë 2 d) ÊÁË 2x − 3y ˆ˜¯ e) ÊÁË x − 3 − 2y ˆ˜¯ ÊÁË x − 3 + 2y ˆ˜¯ ˆ Ê ˆ Ê 12. ÁÁ 5a − 2b 2 ˜˜ ⋅ ÁÁ 25a 2 + 10a ⋅ b 2 + 4b 4 ˜˜ ¯ Ë ¯ Ë 4 ˆ ˆ Ê Ê 13. 3 ÁÁ x 2 + 5 ˜˜ ⋅ (x − 1) 3 ⋅ ÁÁ 7x 2 − 4x + 15 ˜˜ ¯ ¯ Ë Ë 14. x2 + 6 x2 + 4 15. 3x 4 − x 3 + 2x 2 − 4x + 9 − 16. x 3 − x + 1 + 17. 13 x+2 −7x + 9 x2 + x − 7 6 y−5 a+x −3a −w 19. Ê 5 ÁË w − y ˆ˜¯ 18. 20. x 2 + 4x + 16 2 (x + 4 ) 1 ID: A 21. y (x + 1 ) x ÊÁË y − x ˆ˜¯ x+9 x + 2x − 1 7x − 2 23. 6(2x − 1)(x − 3) 22. 24. 2 −3x − 7 (x − 5) ⋅ (x + 4) 25. a) 12 3 d) 32m 3 3 + 6 6 c) 3 − 5x b) 16 15 − 60 3 3 2 e) 1 9p 3 f) x9 y 12 1 g) x 26. a) 16 b) - 8 27. a) 3a 4 b 5 28. a) 2a 29. a) 3 1 243 d) y3 343 = 0.000343 1,000,000 b) 36ab 2 4 b2 b) b 1 3− − c) 21 8 30. a) 3 − 5i 7 15 12 b) c) − x ⋅ 5 y3 d) y 15 − 3 2 1 Ê 3ÁÁÁ Ë ˆ x + 3 + 5 ˜˜˜ ¯ b) 24 + 18i c) −24 − 70i d) 3 11 − ⋅i 13 13 e) 3 5 − i 4 4 f) −i COMPLETION 31. x = −1 45 32. y = 13 33. x = 6 2 3 11d − b 35. a) x = a − 11c 34. x = 4,x = − 36. a) n = 0, 3, or 37. x = −4 ± i b) x = −5 2 cab a+b b) x = −10, 2 c) b = 6 7 c) x = − ,x = 5 4 6 5 2 2 39. x = 3 ± i 38. x = 3 ± 40. x = 3 −ax ax or x − ac ac − x 10 ,x = −1 2 d) x = 5 or 3 4 e) x = 3± 39 3 ID: A 4 4 41. x = − ⋅ i, ⋅ i 5 5 11 6 43. a) x = 7 b) b = 6 (reject b = 1) 44. x ≤ −5 or x ≥ −1 42. x = 45. −5 < x < 11 46. (−∞,−5) ∪ (2,∞) 47. (−∞,−1] ∪ (2,6] SHORT ANSWER 48. a) 49. a) − b) 3 2 b) 2 c) 2 3 d) 0 e) c) 5 6 −2 −3 , m2 = 3 2 Since these slopes are neither equal nor opposite reciprocals, the lines are neither parallel nor perpendicular. 51. y + 11 = 2(x + 1) 50. m1 = 2x − y = 9 52. (-4, -21) 3 ID: A 53. ÊÁË −3, − 7 ˜ˆ¯ 54. No solution. 55. (2, 1) ÊÁ 1 1 ˆ˜ 56. ÁÁÁÁ − , ˜˜˜˜ Ë 4 2¯ 57. 58. 2 10 ; (1, –2) 59. You need to find the slopes and lengths of all the sides. If the consecutive sides are all congruent and perpendicular, then the shape is a square. 60. (3, –2); 4 ESSAY 61. a) −7 b) −18m2 + 3m + 3 c) −2p 10 + p 5 + 3 62. 3; 2; –2; 1; 0; [–5, 3]; [–2, 3] d) −2x 2 − 4xh − 2h 2 + x + h + 3 4 ID: A 63. a) f(x) = 3(x − 2) 2 − 5 b) Vertex (2, -5) minimum c) x=2 d) x intercepts x = 2 ± 5 3 ≈ 2 ± 1.3 ≈ 0.7 and 3.3 e) f(0) = 7 f) 64. a) f(x) = −2(x + 3) 2 + 4 b) Vertex (-3, 4) maximum c) x = -3 d) x intercepts x = −3 ± 2 ≈ −3 ± 1.4 ≈ −1.6 and − 4.4 e) f(0) = −14 f) ÈÍ Í 7 ˆ˜ 65. ÍÍÍÍ ,∞ ˜˜˜˜ ÍÎ 8 ¯ 5 ID: A 66. (−∞,−2) ∪ (−2,2) ∪ (2,∞) 67. (−∞,−4] ∪ [8,∞) 68. D [−2,∞) R (−∞,3] 7 69. 0; − ; –3; 0; –9 4 70. ÊÁ x − 1 ˆ˜ 5 ˜˜ Ê ˆ 71. a) ÁË g û f ˜¯ (x ) = ÁÁÁ ÁË 2x − 1 ˜˜¯ x−2 b) ÁÊË f û h ˜ˆ¯ (x ) = 2x − 3 ÊÁ 5 ˆ Á x − 1 ˜˜˜ ˜˜ − 5 c) ÁÊË h û f û g ˜ˆ¯ (x ) = 3 ÁÁÁÁ 5 Á 2x + 1 ˜˜ Ë ¯ 12x + 7 72. a) f − 1 (x) = 5x + 3 b) g −1 (x) = x + 49 −4 3 PROBLEM 73. 74. 75. 76. 113, 115, 117, 119 n = 23 220 calories The cost is $1500 for 1000 copies. 6 ID: A 77. They must sell at least 500 radios. 78. angle=45°, comp=45°, supp = 135° 79. x=12 P=102 80. a) x = 8 b) x = 4 5 81. h = 18in 82. 6x + 22 83. 30.03; 41.75; 44 84. $7,000; $6,000 85. 108.1, 121.9 86. d = 6, SA= 69π 7