Our graphing calculator is powered by Desmos. Desmos is a powerful tool that enables your students to graph functions, plot data, evaluate equations, explore transformations, and much more. Be sure to check out https://learn.desmos.com/graphing for a brief introduction.
To use our Graphing question type:
Click on the blue + button (or the "add" icon in the more recent version)
Choose "Graphing" from the Question types
Prompt your students to enter an expression or create a table to plot points:

Brief tutorial highlighting the different ways you can use Desmos: