Slide point "a" in the f(x) graph to Graph f(x), f '(x) and f ''(x) to investigate characteristics of f(x) and their connections to f '(x) and f ''(x).
**Note: as of now only functional when f(x) is a 3rd degree polynomial.
Topics covered: Extrema, 1st derivative test, concavity, 2nd derivative test, points of inflection
