1. Chapter 8 Unit Question How do inequalities affect algebraic concepts?

2. Open Learning Logs Date on Left…Section 8 – 3 on right

3. Warm – Up

4. Section 3 How do we solve single-step algebraic inequalities?

5. Homework Check

6. On back of noteguide… It this true? 2 < 4 What if we multiply both sides by 3? Still true? 3 2 < 4 3 6 < 12 What if we multiply both sides by – 3? Still true? – 3 2 < 4 – 3 – 6 < –12 What’s wrong here?

7. Multiplication Property of Inequality Given m < n If we choose a positive c, then cm < cn If we choose a negative c, then cm > cn BUT When we multiply both sides of an inequality by a negative number, we get SIGN FLIPPAGE!

8. SOLVE! SIGN FLIPPAGE??? Now name 3 possible solutions Graph the solution set 0 1 2 3 4 5 66

9. Solve!

10. Addition single steppers

11. Solve…Return of the GUSH!! GUSH!! And SIGN FLIPPAGE! GUSH!! And SIGN FLIPPAGE!

12. The length of a rectangle is 25 inches. If the AREA must be less than 175 square inches, what must the width be less than? l w < A 25 w < 175 w < 7 So the width must be less than 7 inches.

13. Homework HoffmaSheet 8-3