Solution 34813: Graphing Derivatives on the TI-84 Plus Family of Graphing Calculators.
How can I graph derivatives on the TI-84 Plus family of graphing calculators?
Example: Graph the derivative of f(x)=x3
Using the MATHPRINT setting:
• Press [Y=]
• Press [MATH]
• Press  to select 8:nDeriv(
• Press [X,T,θ,n] [X,T,θ,n] [^]  [Right Arrow] [Right Arrow] [X,T,θ,n] [ENTER]
• Once you have your function entered, press [GRAPH] to see the results.
Please see the TI-84 Plus Family guidebooks for additional information.