Equations and Inequalities

Pick the correct letter for:
6 > x

• A

• B

• C

• D

What inequality does the number line graph represent?

• x ≤ 4

• x ≥ -4

• x < -4

• x < 4

18+m=38

• m=0

• m=10

• m=20

• m=8

Simplify the expression:
7(n-3)

• 7n + 21

• 7n - 21

• 7n - 7

• n - 21

Is this an equation or an inequality?

12x - 7 < 44

• Equation

• Inequality

Which of the following is an equation?

• 2x - 3 = 7

• 2x + 3

• 2x + 3x > 7

• 2x + 3 < 0

The cost to rent a rug cleaner for a day is $25 plus $15 per hour.

Write an inequality that can be used to show how many hours (x) you can rent the rug cleaner for so that the charges will be less than $130.

Mathematical Equivalence

OFF

Is this an equation or an inequality?

8 = 2x

• Equation

• Inequality

Match the graph with its inequality. hint: don't be tricked by the variable on the right.

• 11 < a

• 11 > a

• 11 ≤ a

• 11 ≥ a

Which sentence represents m > 41?

• Mary’s points, m, totaled more than 41

• Calvin ran no less than 41 miles, m

• The temperature, m, was less than 41°F

• The magazines’ cost, m, was not more than $41.