# What is the second derivative of #f(x)= 8/x-2#?

##### 1 Answer

Dec 10, 2015

#### Explanation:

The first derivative is:

Rewriting,

Using derivative rules, and the fact that the derivative of any constant is zero,

Using the power rule to finish,

This is our first derivative. To find the second, we simply take the derivative of the above expression:

All we need to do is use the power rule again:

In another form:

And we're done.