1. Warm ups 3 + x < 12 23 > x – 15 2x – 10 > x + 6
Solve for x.
3 + x < 12
23 > x – 15
2x – 10 > x + 6
-3.4 > 0.9 – p
-3 + x > 2x – 4 .
x < 9
x < 38
x > 16
p > 4.3
x < 1
x = 27

2. 7-2 Solving Inequalities Using Multiplication and Division
Objective: To solve inequalities by multiplying and dividing.
Standard 5.0

3. Flip Inequality sign when:
You need to move the letter (variable) to the left
3 < x > p
You multiply or divide by a negative number
-2x > 4

4. Examples – solve and graph
3w > 27
w > 9
x < 3
12 2
x < 18 6
(12)
(12)

5. Examples – solve and graph
x > 3/4
18 < -3m 4
-24 > m
m < -24
Divide by a negative – FLIP! 6 -4 3 -4 3
Multiply by a negative – FLIP!
Move letter to left – FLIP!

6. TOO – watch the flip!

7. Multi-step inequalities
3n > -18
n > - 6

8. Homework
Pg. 396 # ODD

9. 7-1 – 7-2 Review
Math Lab.
Standard 5.0

10. Flip Inequality sign when:
You need to move the letter (variable) to the left
3 < x > p
You multiply or divide by a negative number
-2x > 4

11. 7-1 Review

12. 7-2 Review

13. 7-3 Preview/Review

14. 7-3 Preview/Review