The directions for the problem are in the topic. The problem is as follows

f(x)=x^3, f(a+h)-f(a)/h

My prof didn't go over this type of problem in class today and it is in our homework. I just need a quick run through of how to solve it. Thanks!

- Aug 31st 2010, 12:56 PMoneway1225Evaluate the difference quotient for the given function. Simplify Your answer
The directions for the problem are in the topic. The problem is as follows

f(x)=x^3, f(a+h)-f(a)/h

My prof didn't go over this type of problem in class today and it is in our homework. I just need a quick run through of how to solve it. Thanks! - Aug 31st 2010, 01:22 PMPlato
$\displaystyle f(x+h)=(x+h)^3=x^3+3x^2h+3xh^2+h^3$.

Now you finish. - Aug 31st 2010, 03:48 PMoneway1225
Where do the two 3's come from?

- Aug 31st 2010, 03:56 PMDefunkt
$\displaystyle (x+h)^3 = (x+h)(x+h)(x+h)$. Open it!

- Aug 31st 2010, 05:08 PMPlato