To get the graph of the derivative of a given function f(X) on your TI-83 or TI-84 calculator:

Given a function f(X), in the Y= area of your TI-83 or TI-84 calculator key in the following:

Hit the MATH key followed by the 8 key.

Your display will now appear

nDeriv(

Key in the following:

nDeriv(f(X),X,X)

Then graph and slowly (sometimes very slowly) the graph of f ' (X) will appear.