Quadratic Function
(Graph) Sketch the graph when a > 0 and when a < 0.
(Direction) Describe the direction of the function when a > 0 and when a < 0.
(Concavity) Describe the concavity of the function when a > 0 and when a < 0.
(End Behavior) What happens to f(x) as x goes to positive and negative infinity for a > 0 and a < 0?
(Additional Features) When a > 0 is there a maximum or minimum point? What about when a < 0?