Originally Posted by

**sepoto** I know the derivative of 4.4t^2 is 8.8t because there is a rule that says the derivative of 4.4^2 the power goes down by one and 4.4 is multiplied by the power however what I am being asked to do is plug the equation into the difference quotient which I have done a couple of times so far and not gotten the correct answer yet. I'm hoping someone might show me the steps. In your reply above I am having trouble determining what you mean by s because in the equation s is f(t). Are you saying s is 4.4?