Question

will fan & medal.

Answer 1

Derive the equation of the parabola with a focus at (−5, −5) and a directrix of y = 7.

Answer 2

I got clothes for christmas again :(

Answer 3

write it as standard form
(x-a)^2=4p(y-b)

Answer 4

vertex is at midpoint of focus and directrix ---> (-5+7)/2 = 1

so vertex is at (-5,1)

distance from focus to vertex is (1-(-5)) = 6
a = 1/(4*6) = 1/24

\[y = \frac{1}{24}(x+5)^{2} +1\]