Objective The student will be able to:

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# Objective The student will be able to: - PowerPoint PPT Presentation

Objective The student will be able to:. solve inequalities using multiplication and division. Designed by Skip Tyler, Varina High School. o. -5. -4. -3. o. -5. -4. -3. ●. -5. -4. -3. -5. -4. -3. Answer Now. 1) Which graph represents the correct answer to > 1. ●. o. -53.

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ObjectiveThe student will be able to:

solve inequalities using multiplication and division.

Designed by Skip Tyler, Varina High School

o

-5

-4

-3

o

-5

-4

-3

-5

-4

-3

-5

-4

-3

1) Which graph represents the correct answer to > 1

o

-53

-52

-51

1) Solve > 13
• Draw “the river”
• Clear the fraction - Multiply both sides by -4
• NEW STEP!! When multiplying BOTH sides by a NEGATIVE number, SWITCH the inequality!
• Simplify
• Graph the solution

k < -52

o

-31

-30

-29

• Draw “the river”
• Clear the fraction - Multiply both sides by 3. Do you switch the inequality?
• No - Both sides are being multiplied by a positive number
• Simplify
• Graph the solution

### 2) Solve < -10

x < -30

o

-25

-24

-23

3) Solve
• Draw “the river”
• Clear the fraction - Multiply both sides by -4. Do you switch the inequality?
• Yes - Both sides are being multiplied by a negative number
• Simplify
• Graph the solution

a > -24

Take a quick break!

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Answer Now4) Solve -8p ≥ -96
• p ≥ 12
• p ≥ -12
• p ≤ 12
• p ≤ -12

11

12

13

4) Solve -8p ≥ -96
• Draw “the river”
• Divide both sides by -8. Do you switch the inequality?
• Yes - Both sides are being divided by a negative number
• Simplify
• Graph the solution

p ≤ 12

-8(12) = -96

o

-16

-15

-14

o

-16

-15

-14

-16

-15

-14

-15

-15

-14