Answer
(a) Domain: $ x\in(-\infty,\infty)$
(b) Range: $ y\in[-2,\infty)$
Work Step by Step
Function $ y=|x|-2$
Domain: x can be any real number, $ x\in(-\infty,\infty)$
Range: as $|x|\geq0$, $ y\in[-2,\infty)$
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