The function is defined by f(x)= cases 2x+1, & x<2, 5-2x, & x 2

MATHEMATICS · Subjective · CBSE · Mathematics · Relations and Functions · Relations and Functions

Problem

The function f:R→Rf:\mathbb{R}\rightarrow\mathbb{R} is defined by f(x)={2x+1,x<2,5−2x,x≥2.f(x)=\begin{cases}2x+1, & x<2,\\5-2x, & x\ge 2.\end{cases} State, with brief reasoning, whether ff is one–one.

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