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Home  >>  AIMS  >>  Class11  >>  Math  >>  Relations and Functions
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Let \[|x| = \left\{ \begin{array}{l l} x, & \quad if\: x \geq 0 \\ -x, & \quad if\: x < 0 \end{array} \right.\] where x $ \in $ R \[\] Does the relation {(x, y) | y = |x|, x $ \in $ R} define a function? Find its range

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Range will be the set of non-negative real numbers (either positive or zero).
answered Jun 29, 2014 by thanvigandhi_1

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