VIDEOS relating to Ex 9H,9I and 9J
This is an excellent video which goes through the basic principles of how to sketch the derivative function of a continuous polynomial function.


This video also goes through basic principles but also shows how to sketch the derivative function for a hybrid function where the derivative is NOT defined at every point.


This video goes through how to determine where a function is not differentiable


Here are some links to two websites that graph the derivative function of a given function.

Here is a link to a website which gives an excellent set of video tutorials on LIMITS
http://www.calculushelp.com/tutorials
http://www.calculushelp.com/tutorials