Mastering Multiplying and Dividing Inequalities

The video tutorial explains how to solve inequalities using multiplication and division, similar to solving one-step equations. It emphasizes the rule that the inequality sign flips when multiplying or dividing by a negative number. Three examples are provided to illustrate these concepts, including graphing solutions on a number line.

What happens to the inequality sign when you multiply or divide both sides by a negative number?

• It flips

• It remains the same

• It disappears

• It doubles

Tags

CCSS.6.EE.B.8

In Example 1, why did the inequality sign not flip when multiplying both sides by 2?

• Because 2 is a positive number

• Because 2 is a negative number

• Because the operation was division, not multiplication

• Because the original inequality was incorrect

Tags

CCSS.6.EE.B.8

What is the result of solving the inequality in Example 1?

• x > -2

• x = -2

• x < -2

• x <= -2

Tags

CCSS.6.EE.B.8

In Example 2, what operation is performed to both sides of the inequality?

• Addition of 3

• Division by -3

• Multiplication by -3

• Subtraction of 3

Tags

CCSS.6.EE.B.8

What is the final inequality sign in Example 2 after performing the operation?

• Greater than or equal to

• Less than or equal to

• Equal to

• Not equal to

What is the solution to the inequality in Example 2?

• n < -6

• n >= -6

• n > -6

• n <= -6

Tags

CCSS.6.EE.B.8

In Example 3, what is the initial operation performed on the inequality?

• Addition of 5

• Subtraction of 5

• Multiplication by -5

• Division by -5

Tags

CCSS.HSA.REI.A.1

How does the inequality sign change in Example 3?

• From greater than to less than

• From less than to greater than

• It does not change

• From equal to not equal

What is the final result of the inequality in Example 3?

• R != 5

• R < 5

• R > 5

• R = 5

Tags

CCSS.7.EE.B.4B

What should you do if you have questions about flipping the inequality sign?

• Ask in class

• Flip a coin

• Ignore the flip

• Guess the answer

Tags

CCSS.6.EE.B.8