Question

How would I find the general form of this parabola...

Answer 1

I know that the equation is y=-a(x-h)^2+k

Answer 2

I'll assume A is the focus

Vertex is ( 3, 0) focus (3, -4) directrix is y = 4

so the value of a = 4 a = distance between the vertex and focus

so the equation is y = -4(x - 3)^ + 0

of y = -4(x-3)^2

Answer 3

Awesome! Thank You So Much! I didn't realize that everything basically came together into one.

Answer 4

yep (h, k) is the vertex.... the a value is the distance of the focus from the vertex and y = -a is the equation of the directrix

Answer 5

Thanks Again