For , the expression can take all real values if…

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

Problem

For

x \in R

, the expression

\frac{x^2 + 2x + c}{x^2 + 4x + 3c}

can take all real values if

c \in

: (a)

(1, 2)

(b)

[0, 1]

(c)

(0, 1)

(d)

(-1, 0)