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Absolute Value Function

The absolute value function is fundamentally defined by the equation f(x)=xf(x) = |x|. Because the absolute value can be cleanly computed for any real input, its domain is all real numbers, expressed as (,)(-\infty, \infty). However, since absolute value represents a number's physical distance from zero, the output can never be negative. Therefore, the range is strictly restricted to non-negative real numbers, or [0,)[0, \infty). Geometrically, the graph of this function creates a sharp, symmetrical V-shape that consists of two linear rays converging exactly at the origin (0,0)(0, 0).

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Updated 2026-05-06

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