Identify the expression that represents a rational function which is NOT a polynomial.

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

Problem

Identify the expression that represents a rational function which is NOT a polynomial. (a)

p(x)=\sqrt{x}+2

(b)

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

(c)

q(x)=\dfrac{x^{2}+1}{5}

(d)

r(x)=\dfrac{x}{x}