Textbook ExpertVerified Tutor
25 Oct 2021
Given information
The graph is given,
Step-by-step explanation
Step 1.
A corner or a discontinuity or a vertical tangent at that point makes it non-differentiable.
We can see a discontinuity at .
We can see a corner(a kink) at .
The graph has a discontinuity at .
The point , is a vertical tangent to the function.