parabola

distances are the same

c: (x - 3)^(2) = (8 * (y + 2))
directrix: y = -4
focus: (3, 0)
A = Point(c)
f_1 = Segment(focus, A)
g = OrthogonalLine(A, directrix)
B = Intersect(directrix, g)
h = Segment(A, B)
f: f_1 - h