Now, complete the square on the right and then collect terms to result in a function that has the following pattern:
which is a parabola with a vertical axis of symmetry and a vertex of (h,k). The parabola opens upward if , downward otherwise. is the distance from the vertex to the focus of the parabola and is the distance from the vertex to the directrix.
John
My calculator said it, I believe it, that settles it
