Tonight's (or tomorrow night's) HW:

Watch the following Khan Academy video and take notes.  Then try to re-do the problem yourself.


http://www.khanacademy.org/video/calculus--graphing-using-derivatives?topic=calculus

I know I didn't mention much about how to literally get the second derivative, but all you do is take the derivative of the derivative.  For example,

original function                                first derivative                                   

             


second derivative