Put together a beginners guide to graphing

[DrD]

I could suggest that you presume a beginner has absorbed enough operator information to start the graphing app with a linear equation.

Your beginner's guide might be more helpful by pointing out the checkboxes, color selection, maybe multiple equations, etc. Then follow that with the use of the Symb key to review the contents of the plot equation setup, possibly introducing the edit key, and that sort of thing.