Quadratic 3 in Vertex Form

Dr. Fisher
The quadratic function f(x) is shown in vertex form. One of a or b is true; one of c or d is true, and one of p or q is true. Use the sliders and these hints to find a formula for the path of the basketball.
What is the domain of this function? Does it make sense for x to be negative? What is the range of this function? What do each of the sliders A, h, and k do to the graph? How many seconds does it take for the ball to reach the top of it's arc?