Inequalities in One Variable

Write an inequality for the statement: You must be at least 48 inches tall to ride the bumper cars.

• h < 48

• h > 48

• h ≤ 48

• h ≥ 48

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

• True

• Not True

Solve

• x < -96

• x < 20

• x = 6

• x > 96

Solve the following inequality. Show your algebraic work!

• b > 6

• b < -4

• b > 1

• b < -12

Solve the linear inequality.

• x > -2

• x < -2

• x < 2

• x > 2

You flip an inequality symbol when you...

• subtract

• multiply and divide only

• multiple by a negative number

• multiple or divide by a negative number

-4 + y < -8

• y < 4

• y < -12

• y < -4

• y < 12

The room can hold a maximum of 400 people. If there are already 134 people there, how many more can come? Identify the inequality that represents this situation.

• x - 134 < 400

• x + 134 < 400

• x - 134 ≤ 400

• x + 134 ≤ 400

Level 2

23 < f + 12

• f > 11

• f > 35

• f < 35

• f < 11

Does the sign need to flip when solving?
8y < (-40)

• YES

• NO