Cubic Function
(Graph) Sketch a graph of the function when a > 0 and when a < 0.
(Direction) Describe the direction of the function for a > 0 and a < 0.
(Concavity) Describe the direction of the function for a > 0 and a < 0.
(End Behavior) For a > 0, what happens to f(x) as x goes to infinity? What happens when x goes to negative infinity?
(Additional Features) How many inflection points does the graph of f(x) have?