The ACT just announced that the powerful Desmos Calculator will be embedded into the online version of the ACT test starting with the December online ACT. Please check out our Online ACT Desmos Guide for several tips and tricks that will help you make the most of this resource.
In addition to the built-in calculator, be sure to use a hand-held graphing calculator when you take the ACT. It remains to be seen how much having the built-in Desmos calculator will make a difference for students who do the online version of the test. Until we have more conclusive information from test-takers and released tests, it is best to be prepared!