Which of the following is the parent function whose graph is a horizontal line?

MATHEMATICS · Single correct · CBSE · Mathematics · Relations and Functions · Relations and Functions

Problem

Which of the following is the parent function whose graph is a horizontal line? (a)

f(x)=x^{2}

(b)

f(x)=\dfrac{1}{x}

(c)

f(x)=c

, where

c

is a non-zero constant (d)

f(x)=x