1. Multiplication and Division Property of Inequalities
When c is positive,
if a > b, then a • c > b • c
When c is negative,
if a > b, then a • c < b • c

2. If you multiply or divide an inequality by a negative number, reverse the inequality sign in the answer.

3. Ex 1 Solve and graph
-3y  12 -3 -3
y  -4  -2 -6 -4 6 4 2

4. Ex 2: Solve and Graph.
3y  -15
y  -5 -2 -6 -4 6 4 2

5. Ex 3: You try :Solve and Graph-2 -6 -4 6 4 2

6. Ex4:

7. Ex 5: You try

8. Ex 6:

9. Ex 7: You try

10. Ex 8: > -0.7w

11. Ex 9 : you try -1.5 <3n

12. Homework
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