Go online and use this very good graphing calculator:
https://www.desmos.com/calculator
+1491 This website actually has one though it is not the best, it can be useful for sketch graohs and finding limits, etc. On the bottom of the calculator there will be a button that says "Make a graph." Just input your equation where it says f(x)=... or g(x)=... there's no difference between them.
