Find the excluded value(s) of .

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

Problem

Find the excluded value(s) of

f(x)=\dfrac{2x+1}{x^{2}-4x+3}

. (a)

\{1\}

(b)

\{-\dfrac12\}

(c)

\{1,3\}

(d)

\{1,-3\}