CP – Algebra 1
2013-2014
Unit 5 - System of Equations & Inequalities
Topic
Assignment
#1
Day #
7.1 Solving by Graphing
Pg. 430 #2-4, 8-10, 13, 14, 15, 28
MUST USE GRAPH PAPER
#2
7.1 continued (0, 1 or many solutions) + graphing calc
Day 2 Worksheet
#3
7.1 Solving Word Problems by Graphing
Day 3 Worksheet
#4
7.2 Solving by Substitution
Pg. 439 #2-11, 19
#5
7.2 continued (0,1 or many solutions)
Day 5 Worksheet
#6
7.3/7.4 Solving by Elimination
Pg. 447 #3  8, 16, 18, 25, 26

Pg. 454 #2, 3  8
#7
7.3/7.4 continued
Pg. 454 #9  19 odd, 34

Pg. 463 # 15  23odd, 24  29
#8
7.6 Graphing Systems of Linear Inequalities
Pg. 469 #1-8, 9-19 odd, 22, 25, 27, 33
#9
7.6 continued (graphing calculator)
Pg. 469 #10-18 even, 24, 26, 29, 30
#10
Systems of Equations Review
Day 10 Worksheet
#11
Review for Unit 5 Test
Unit 5 Targets
Nov 18-22
Unit 4 Test
Corrections
Nov 25-29
#3
Dec 2-6
#5
Dec 9-13
MiniQuiz
Inequalities
#10
Review Activity
#11
Dec 16-20
Word Problems
QUARTERLY
Dec 23Jan 5
Bungee Barbie
MiniQuiz
Graphing
#4
MiniQuiz
Substitution
#6
Bungee Barbie
#1
#2
THANKSGIVING BREAK
#7
MiniQuiz
Elimination
#8
#9
UNIT 5 TEST
Unit 5 Test
Corrections
Quarterly Review
WINTER BREAK
Selected Solutions…
Day#1Solutions
2. Graph both equations, estimate the point
of intersection, check whether the point is a
solution to both equations.
9.  4,2
10. 3, 2
3. yes, solution
4. no
8. 1, 3
13.  4,0
14.  2, 2
15.
 3, 5
1 1
28.  ,  ; it is important to check your solution because when we graph, it’s often difficult to estimate the solution
2 2
when it the coordinates are not integers
Day #2 Solutions
1. 1,2 , 3,5 , 5,1
6.  3,4
2. no solution
7. infinitely many
solutions
12. 1,5 and 5,5
11. 1.8, 0.4
Day #3Solutions
1. year 2040
2. 3,4
3. infinitely many
solutions
8. no solution
4.  4, 4
5. 6,3
9. 3,7
10. no solution
13. 1,2
3b.
y  0.10x  15
4c. 4 games;
costs $10.75
y  0.05x  20
3d. 100 minutes
5c. 98 adult
tickets, 115
student tickets
7b. y  30x  5400, y  120x
7c. 60 vacuums
Day #4 Solutions
2. equation 2 for y because y is
already isolated
7.  4,5
8. 3,22
3. 5,3
4. 1,1
5. 2, 1
9. 6,7
10.  8, 7
11. 2, 2
6a.
x= # of square
feet
y = total cost
6c. 10 square ft.
6. 13,6
Day #5 Solutions
1. infinitely many
solutions
2. 2,2
3. no solution
4. infinitely many
solutions
5. no solution
6. 3,0
7.  8, 25
8. infinitely many
solutions
9. D
10. A
 1,2
16.
 15, 62
Day #6 Solutions
P447
4.  3,29
P454
2. varied
explanations
6. 12,6
8.
4. (5, 6)
6. (19, 16)
18.
 6, 1
26.  4, 9
8. (8, 3)
Day #7 Solutions
p454
34. -4, you can
add and cancel
the x-terms
28. one solution
(0, 9)
p463
24. C
26. no solution
x  1
24. 
x  4
 y  3
26. 
y 2
30. check your graph with your
calculator
Day #8 Solutions
4. solution
22. B
Day #9 Solutions
10-18. check your graph with your
calculator!