Question

What is the equation of the quadratic graph with a focus of (4, 0) and a directrix of y = 10?

Answer 1

Do you know we can draw this first and then recall the definition of a parabola to get the desired equation?

Answer 2

first of all do you know the vertex of the parabola given the above information?

Answer 3

I will give you a hint the vertex occurs between the directrix and the focus

Answer 4

(it is exactly halfway in between actually)

Answer 5

Whenever you draw this parabola, you have to draw it so it doesn't cross the directrix so this should also give you a hint if the parabola is faced up or down.

Answer 6

Once we have drawn are parabola, I will begin to help you form the equation.
Finish the graph and I will proceed to help you
also don't forget to tell me what the vertex is

Answer 7

can;t figure out the vertex