Inequalities

Lin is selling boxes of cookies. Each box costs $3.75. Lin’s goal is to earn more than $30 selling cookies.
If Lin sells 20 boxes of cookies will she make her goal?

• Yes

• No

Lin is selling boxes of cookies. Each box costs $3.75. Lin’s goal is to earn more than $30 selling cookies.
If Lin sells b boxes of cookies, write an inequality that will be true whenever Lin makes her goal, and false whenever she does not.

• 3.75b > 30

• 3.75b < 30

• 3.75b ≤ 30

• 3.75b ≥ 30

What inequality does the number line graph represent?

• 4 < x

• x > 4

• x < 4

• x ≤ 4

Level 1

Match the graph with its inequality.

• 11 < a

• 11 > a

• 11 ≤ a

• 11 ≥ a

Solve the linear inequality.

• x > 1

• x > 5

• x > -1

• x < -1

Solve the linear inequality.

• x < 5

• x > 5

• x < 5

• x > 5

What inequality does the number line graph represent?

• x ≥ 3

• x > 3

• x < -3

• x ≤ -3

When you graph an inequality, you used a closed dot when you use which symbols?

• ≤, ≥ 

• <, >

• ≤, <

• ≥, >

Match the graph with its inequality.

• c > 9

• c < 9

• c ≥ 9

• c ≤ 9

10 ≥ x - 3

• x ≤ 13

• x ≥ 13

• x ≤ 7

• x ≥ 7