1. Explore what is meant by the focus of a parabola. Draw a picture that shows a parabola and its focus.

1. True or False. The focus of a parabola and vertex will share the same x value. Assume the parabola is opening up or down.

1. The point (3, 7) is on a parabola. The same parabola has the vertex ( 6, 0). Find another point on the parabola. Hint: use the line of symmetry.

1. On the technology assignment you fit quadratic models to two sets of data. If you were not told to use a quadratic would you have used one for both? Explain why or why not.