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

Apr 4, 2018

$1.$ There are discontinuities in the function.
$2.$ There seems to be a $\text{sharp}$ turn somewhere in the function. An example would be this: graph{absx [-10, 10, -5, 5]}
$3.$ There is a vertical line rising, like $x = 5$