Question

How do you find the non differentiable points for a graph?

Answer 1

Read below.

Explanation:

There are three popular cases:

`1.` There are discontinuities in the function.

`2.` There seems to be a `"sharp"` turn somewhere in the function. An example would be this: graph{absx [-10, 10, -5, 5]}

`3.` There is a vertical line rising, like `x=5`