Plotting equations with Sketchpad
How to Plot an Equation You should now have a plot of your expression.

This technique assumes you want to plot Y as a function of X. You can obviously measure things differently and plot X as a function of Y. If you change the Grid to display a polar coordinate system (in the Graph: Grid Form menu), Plot as (x, y) becomes Plot as (r, theta), with which you can plot polar functions as well.

Happy plotting!