Practice Absolute Value Inequalities in Math

Use these practice problems to test your method after reviewing the concept explanation and worked examples.

Quick Recap

Absolute value inequalities describe values within or outside a fixed distance from a center.

∣x−a∣<r means stay inside a radius; ∣x−a∣>r means outside it.

Showing a random 20 of 50 problems.

Example 1

medium
Write ∣x−5∣≤2 in interval notation.

Example 2

medium
Solve ∣3x+2∣>7.

Example 3

medium
Solve ∣x+3∣≥1 and write it in interval notation.

Example 4

challenge
Solve ∣x∣+∣x−4∣≤6.

Example 5

medium
Solve ∣x+4∣≥6 and write it in interval notation.

Example 6

hard
Solve ∣x+1∣>2x−3.

Example 7

easy
Solve ∣x∣>2.

Example 8

medium
Solve 5−∣x∣≥1.

Example 9

easy
Solve ∣x∣≤4.

Example 10

easy
Solve ∣x+3∣>1.

Example 11

easy
True or false: ∣x∣≤0 has only one solution.

Example 12

easy
Solve ∣x∣<6.

Example 13

medium
A bolt's diameter must be within 0.02 mm of 5 mm. Express this as an absolute value inequality and find the acceptable range.

Example 14

medium
Express x≤−1 or x≥5 as a single absolute value inequality.

Example 15

medium
Solve ∣x−3∣+2<6.

Example 16

challenge
For what real a does ∣x−1∣+∣x−a∣≥4 hold for ALL real x?

Example 17

challenge
For what values of k does ∣x−3∣<k have no solution?

Example 18

easy
Solve ∣x∣<0.

Example 19

medium
Solve ∣x−4∣+2≤7.

Example 20

easy
Solve ∣x∣≥0.