Which of the following parent functions is an odd function?

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

Problem

Which of the following parent functions is an odd function? (a)

f(x)=|x|

(b)

f(x)=x^{3}

(c)

f(x)=e^{x}

(d)

f(x)=\cos x