Parabola Properties

Experiment with the following Geogebra file. Then answer these questions: 1. What does the h slider do? That is, how does it affect the graph? 2. What does the p slider do? That is, how does it affect the graph? 3. What does the k slider do? That is, how does it affect the graph? 4. What is the relationship between the length FA and the length AB? 5. If you slide point A so it is on top of V, what variable does the distance FA = FV correspond to? 6. Slide point A so that FA is horizontal (parallel to the directrix). Can you relate FA to the value of a variable now?