Chapter 2: Chapter Review

9. Describe the graph of the solution set of | k + 3 | < 2.

Points less than 2 units from - 3.

12. For real numbers a and b, ab = 0 if and only if ____.

a = 0 or b = 0

10. A theorem that can be proven easily from another theorem is a(n) __________.

corollary

13. For real numbers a, b, c, if a > b and c < 0, then ______.

(a/c) < (b/c)

7. | 2y + 9 | < 13

- 11 < y < 2

3. Solve -3 < 4c + 5 ≤ 1.

- 2 < c ≤ - 1

5. At the video store, you can rent tapes for $1.50 each per day, or you can get unlimited rentals for a monthly fee of $20. At most how many tapes could you rent at $1.50 before spending more than the cost for a month's unlimited rentals?

13

4. Graph the solution set of the following disjunction: 4 - w ≤ 3 or w + 5 < 3

w < -2 or 1 ≤ w [Graphed]

8. | 4 - h | ≥ 5

h ≤ -1 or h ≥ 9

1. Solve -(m/2) < -2.

m > 4

2. Solve 3(n - 1) > 5n + 7.

n < -5

11. The converse of a true statement is _____.

sometimes true

6. | 5 - (x/3) | = 7

{-6, 36}