1. Finding the derivative function (the limit of the difference quotient)
2. Finding the slope of the tangent line at a specific x-value
3. Finding equation of tangent line at specific point
4. Finding when tangent line is horizontal
This video will go over examples #24, 28 (and ask you to do #23). Find the derivative yourself first, if possible.
Source: Created by Crystal Kirch using Camtasia for Mac