Let be defined by

MATHEMATICS · Single correct · AP · AP Precalculus · Polynomial and Rational Functions · Polynomial and Rational Functions

Problem

Let

f:\mathbb{R}\setminus\{1\}\to\mathbb{R}

be defined by

f(x)=\dfrac{x^{2}-1}{x-1}

. Which of the following is the range of

f

? (a)

\mathbb{R}

(b)

\mathbb{R}\setminus\{0\}

(c)

\mathbb{R}\setminus\{2\}

(d)

(-\infty,2)