Solving and Graphing Inequalities Dividing by a Negative

• A
• B
• C
• D

3x-4< -13 or 7x+1> 22

• All Real numbers

•   x>3   and x>-9

• The answer is not listed

• x<-3   or x>3

Solve:

• A

• B

• C

• D

When solving inequalities you must _________________ the inequality when ____________________ by a negative.

• flip; dividing

• ignore; multiplying and dividing

• flip; multiplying

• flip; multiplying and dividing

Tags

CCSS.6.EE.B.8

-8<2(x+4) or -3x+4>x-4

• No solutions

• x<-8 or x<2

•  x>-8 or x<2

• x<-8 and x<2

Solve each compound inequality and graph its solution.

• A

• B

• C

• D

-8 < 2(x+4) or -3x+4 > x-4

• No solutions

• x < -8 or x < 2

• x > -8 or x < 2

• x < -8 and x < 2

Why do we graph inequalities?

• There is no good reason to graph inequalities.

• We need to practice our art skills.

• THE GRAPH SHOWS ALL THE SOLUTIONS TO THE INEQUALITY.

Tags

CCSS.HSA.REI.D.12

Solve:
3x + 2 < -4 or 4x + 4 > 24

• x < -2 or x > 5

• x < 2 or x > 5

• x < -2 and x > 5

• x < 2 and x > 5

When solving an inequality, you must flip the sign when?

• Adding or subtracting a negative number

• Multiplying or dividing by a negative number

• Never

• Always

Tags

CCSS.6.EE.B.8