https://docs.google.com/document/d/1gV-WgDjgR9hKKb32ffeUpjwggNAgfqxl0Gsg6xocbok/preview?tab=t.0
https://help.desmos.com/hc/en-us
https://help.desmos.com/hc/en-us/articles/212235786-Supported-Functions
http://help.desmos.com/hc/en-us/articles/30913914831757-Assessment-Resources-FAQ
https://www.youtube.com/watch?v=BqNHG9xLy6E
A lot of people online have guides on how to use things in Desmos. I will be creating some resource graphs and videos sometime.