Graphing calculator apps

iPhone - The Calculate84 App is for Ipad or iphone and can be found in the APP store.

https://apps.apple.com/us/app/calculate84/id1459712793

Android - wabbitemu.org or https://play.google.com/store/apps/details?id=scientific.graphing.calculator.t84.t36.t83&pcampaignid=web_share&pli=1 

Desmos: www.desmos.com

Desktop/laptop

https://ti84calc.com/ti84calc

**These are all free apps that can assist you with all units of study.