The Cubic function
Cubic functions are part of the function family,it is called cubic function because it has 3 x intercepts.
Cubic functions have two forms,one positive and one negative.Positive goes from left down to right up.Negative goes from right down to left up.Here're two examples.
Grenn is negative,red is positive.They have the same x intercepts,so they were just vertically flipe.They are beautiful don't they?