Brother for life, at my high school we gott TI-84 plus model, no instruktion or anyting about how to use it. When you need something you got to find/try find it by your self or ask the teather every time. Thx för the help man.
@@rinkothelad You shouldn't get an error if you did it correctly. Also, if you want to find the x value for a certain y-value, you need to graph a value y and then find the intersection with your function of x. Here I was just explaining how to find a function for all values for your derivative(by setting x equal to x).
