Graphing Calculators can be expensive and out of the range of some students’ budgets.

There are some free “virtual” calculator options available on line. Here are a some links to try that you may find a good fit to your learning needs:

Google site where you can download files to install a “virtual” calculator on your computer

https://www.videomathteacher.com/free-resources/free-downloadable-math-calculators/download-free-virtual-ti-calculator-online/

https://www.meta-calculator.com/?panel-101-equations

https://www.numworks.com/simulator/

There are also graphing calculator apps available for Smartphones and tablets. Here is a link to an article that gives a brief overview of a few:https://www.imore.com/best-graphing-calculator-apps-iphone-and-ipad

Please let me know if any links are broken or if the tool there was not helpful.