Absolute Value/Examples/x - a

Example of Absolute Value

Let $x, a \in \R$.

Then:

$\size {x - a} = \begin {cases} x - a & : x \ge a \\ a - x & : x < a \end {cases}$

Sources

• 1972: Frank Ayres, Jr. and J.C. Ault: Theory and Problems of Differential and Integral Calculus (SI ed.) ... (previous) ... (next): Chapter $1$: Variables and Functions