Algebra
Basic

Absolute Value

Distance of a number from zero, always non-negative.

Formula

∣x∣={xx≥0−xx<0|x| = \begin{cases} x & x \ge 0 \\ -x & x < 0 \end{cases}

Variables

xAny real number

Example

|-7| = 7

Did You Know?

Absolute value measures distance from zero, which is why it can never be negative.

absolute valuebasics