1. Warm-up April 3 HW: Study for your quarterly!
1. In the accompanying diagram, line a intersects line b.
The sum of 3x2 – 8x – 2 and 4x – 2 is
3x2 – 4x – 4
3x2 + 12x
(3) 3x2 – 4x + 4
(4) 7x2 – 7x – 4
3x2 – 8x – 2
4x – 2
3x2 – 4x – 4
What is the value of x?
–10 10
(3) 5
(4) 90
x + 5 = 2x – 5
-x x
5 = x – 5
10 = x
HW: Study for your quarterly!

2. Aim: Review for the quarterly.
HW: Study for your quarterly!

3. Review for Quarterly 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

4. 3x x = 180
5x + 40 = 180
5x = 140
5 5
x = 28
Answer:

5. x = 138⁰ What is the measure of x ?
2. In the diagram below, line s is parallel to line t, and line r is a transversal.
42⁰
What is the measure of x ?
Answer:
x = 138⁰

6. A
Answer:

7. A
Answer:

8. A
Answer:

9. A
Answer:

10. Solve and graph.
7. -6x + 14 ≤ -4(1 + 6x)
x ≤ -1
Answer:

11. A
Answer:

12. -5n – 26 ≤ 6(-7n + 8) x ≤ 2 Solve. -5n – 26 ≤ 6(-7n + 8)
37n ≤ 74
x ≤ 2
Answer:

13. 5x + x + 12 = x + 12 = 180
6x = 168
x = 28
Answer:

14. 4(m – 8) ≤ -2(m – 6) + 4 Solve and graph. m ≤ 8 Answer:
6m ≤ 48
m ≤ 8
Answer:

15. Answer: 7y - 8 = 6y + 1 1 = 7(9) – 8 -6y +8 -6y +8 1 = 55 y = 9
Find the measures of the angles.
7y - 8 = 6y 1 = 7(9) – 8
-6y y 1 = 55
y = 9
2 = 6(9) +1
2 = 55
Answer:

16. C
Answer:

17. Solve and graph. x > -8 2(x – 12) < 5(2x + 9) Answer:
2(x – 12) < 5(2x + 9) *distributive property
2x – 24 < 10x + 40
-10x x *subtract 10 from both sides
-8x – 24 < 40
*add 24 to both sides
-8x < 64
*divide both sides by -8
x > -8 *flip the inequality symbol b/c dividing by a negative
x > -8
Answer:

18. 15 – 3n = n – 1
+1 +3n =+3n +1
16 = 4n
n = 4
Answer: