Question

Derive the equation of the parabola with a focus at (0, 1) and a directrix of y = −1.

f(x) = −one fourth x²

f(x) = one fourth x²

f(x) = −4x²

f(x) = 4x²

Answer 1

f(x) = one fourth x2 or B

Answer 2

...............The answer is B