Question

The range of the function f(x) $=\frac{x-2}{2-x}$ when x $\ne$ 2 is

• A. R
• B. R - {1}
• C. {-1}
• D. R-{-1}

Answer 1

The correct option is C {-1}

$f\left(x\right)=\frac{x-2}{2-x}=-\frac{x-2}{x-2}=-1$ if x $\ne$ 2
$\therefore$ Range of f = {-1}
$\therefore$ The correct answer is (c).