# How do you find the discontinuities for #y=(4x)/(x^3-9x)#?

##### 1 Answer

Jun 17, 2015

Factor the denominator to get:

with exclusion

This has a removable discontinuity at

#### Explanation:

So

This is a removable discontinuity as we can simply define:

graph{4x/(x(x-3)(x+3)) [-10, 10, -5, 5]}