M9 Linear Inequalitites

Match each phrase with the correct symbol.

• less than or equal to

• greater than

• greater than or equal to

• not equal to

• less than

Solve the inequality

• x ≤ 2

• x ≤ -2

• x ≥ 2

• x ≥ -2

Does the given value make the inequality true? 
 x + 9 > 21, when x = 15

• True
• False

Solve.

• x ≤ 14
• x < 14
• x ≥ 14
• x = 14

you must be at least 48 inches to ride the roller coaster.

• x > 48
• x < 48
• x ≤ 48
• x ≥ 48

• x > 2
• x > 5
• x >15
• x > 50

Sue's lunch account has $25 and she spends $2.50 every day. Troy's lunch account has $50 and she spends $3.25 every day. Write an inequality that shows when Sue's account will be more than Troy's.

• 25 - 2.5d > 50 - 3.25d
• 25 - 2.5d < 50 - 3.25d
• 25 + 2.5d > 50 + 3.25d
• 25 + 2.5d < 50 + 3.25d

-3 − 6(4x + 6) > -111

• x > 3
• x < 3
• x < -3
• x > -3

Solve:
4(2a + 3) < 3(a - 1)

• a<-3
• a>-3
• a<3
• a>3

Solve:
3(x - 2) < 2(x + 9)

• x<24
• x>12
• x<12
• x>24