Question

I will award you a medal!!!


Derive the equation of the parabola with a focus at (2, 4) and a directrix of y = 8.

f(x) = −1/8 (x − 2)^2 + 6

f(x) = 1/8 (x − 2)^2 + 6

f(x) = −1/8 (x + 2)^2 + 8

f(x) = 1/8 (x + 2)^2 + 8

I think A

Answer 1

a

Answer 2

okay thanks!