A parabola can be drawn given a focus of (0,-7) and a directrix of y=9. What can be said about the parabola?

Question

The parabola has a vertex at ( , ) has a p-value of __ and it opens up, opens down, opens up, opens right?

Answer 1

The vertex is halfway between the focus and directrix and the parabola opens toward the focus. The p-value is the distance between the vertex and parabola so -8