One-Step Equations & Inequalities

When graphing an inequality, you use a closed circle when you use which symbols?

• ≤, ≥

• <, >

Which inequality matches the graph?

• A

• B

• C

• D

Which choice models this situation? Marcus needs to sell 25 tickets to a fundraiser by Friday. So far, he has sold 9 tickets. How many tickets does he still need to sell?

• t - 9 = 25

• t + 9 = 25

• 9t = 25

• t/9 = 25

• 7

• 3

• x

• -4

x + 5 ≤ 13

• x ≥ 8

• x ≥ 18

• x ≤ 8

• x ≤ 18

What are two solutions to x < 8?

• 8.6, 7.9

• 11, 16

• 0.8, 5.9

• 12, 7.1

Choose the correct expression that represents 7 is less than a number.

• x > 7

• x < 7

• x ≤ 7

• x ≥ 7

8.9 + j = 12.8

• j = 21.7

• j = 3.9

• j = 1.4

• j = 4.1

Describe the graph for the solution for the following inequality:
a + 13 ≥ 20

• Closed circle; arrow pointing left

• Open circle; arrow pointing left

• Closed circle; arrow pointing right

• Open circle; arrow pointing left

Write an equation for the model above.