Inequalities in One Variable

A limo driver needs to make more than $450 in one day.  He charges a rental fee of $375 and $0.85 per mile.  What inequality represents the number of miles, x, he would have to drive to reach his goal?

• 0.85x + 375 > 450

• 0.85x + 375 < 450

• 0.85 + 375x > 450

• 0.85 + 375x < 450

The sum of a number and 8 is greater than 12

• n + 8 > 12

• n + 8 < 12

• n < 8 + 12

• n + 12 > 8

Solve the inequality. Don't forget to check your solution set.
12 ≥ 15 - 6y

• y ≤ ½

• y ≤ 2

• y ≥ ½

• y ≥ 2

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

• a<-3

• a>-3

• a<3

• a>3

-3 − 6(4x + 6) > -111

• x > 3

• x < 3

• x < -3

• x > -3

Which is the solution to the following inequality?

d - 5 > -4

-3

• d < 17

• d > 17

• d < 7

• d > -7

5z - 2 - 2z < 13

• z > 5

• z < 5

• z > 1

• z < 1

When graphing an inequality, you use an open dot when you use which symbol?

• <, >

• ≤, ≥ 

In an equation or inequality, you want to get the variable...

• on one side

• to disappear

• isolated (by itself)

Match:
You must be at least 48 inches tall to ride the bumper cars.

• h < 48

• h > 48

• h ≤ 48

• h ≥ 48