# What are the points of inflection, if any, of #f(x)=2x^4-e^(8x#?

##### 1 Answer

Apr 24, 2018

See below

#### Explanation:

First step is finding the second derivative of the function

Then we must find a value of x where:

(I used a calculator to solve this)

So at the given

Hence we can plug values into the function and see what happens:

So there is a sign change around