1. 4.2 Solving Inequalities Using Addition and Subtraction

2. Addition Property of Inequalities If a < b, then a + c < b + c The same is true for >, , and 

3. Subtraction Property of Inequalities If a < b, then a - c < b - c The same is true for >, , and 

4. Ex 1: Solve for “x”and graph: x - 3 > 4 +3 X > 7 -4 -80 84

5. You try on your own: Solve and Graph y - 6> -7 Answer: y > - 1

6. Ex 2: Solve:

7. You try on your own Solve and Graph

8. Ex 3:Solve and Graph -9.1 < d - 6.3

9. You try on your own Solve and Graph

10. Ex 4: The hole for a birdfeeder post is 3 feet deep. The top of the post needs to be at least 5 feet above the ground. Write and solve an inequality that represent the required length of the post.

11. Assignment: Page 134-135 (4-22) even