Question

For each function $f$graphed in Exercises 65-68, determine the values of $x$at which $f$fails to be continuous and/or differentiable. At such points, determine any left or right continuity or differentiability. Sketch secant lines supporting your answers.

Short answer

The function is not continuous at $x=-1$and not differentiable at $x=-1,1$and the secant lines is

Step-by-step solution

Step 1. Given information

Given the graph

See the point at which there is a sharp point

From the graph, the function is having a sharp point at $x=-1$and it is not differentiable at $x=-1,1$

The secant lines are