Let be defined by h'(x)= cases 3-x, & -2 x 0

MATHEMATICS · Single correct · CBSE · Mathematics · Applications of Derivatives · Applications of Derivatives

Problem

Let

h'(x)

be defined by

h'(x)=\begin{cases} 3-x, & -2\le x\le 0,\\ x-1, & 0<x\le 3. \end{cases}

On which interval is the graph of

h

concave down? (a)

(0,3)

(b)

(0,1)

(c)

(-2,0)

(d)

(-2,3)