Chapter 14.4, Problem 20E

To determine

To describe:

The frequency distribution represented by the critical thinking of the function $f$

Explanation of Solution

Given:

The graph

  

Concept used:

Critical point:- A critical point of a continuous function $f$ is a pont at which the derivative is zero or undefined .

(1) $f\text{'}\left(x\right)=0$

(2) $f\text{'}\left(x\right)$ is undefined

Calculation:

The function is

  $f\left(x\right)=\mathrm{1.........}\left(1\right)$

Differentiating the equation (1) with respect to $x$

  $f\text{'}\left(x\right)=0$

Therefore,

The option (d) is correct