c: y = (1 / 560 * x^(2))
f(x) = If[-150 ≤ x ≤ 150, (1 / 560 * x^(2))]
F = Focus(c)
A = Point(f)
g = Tangent(A, f)
h = OrthogonalLine(A, g)
i = Line(A, yAxis)
i' = Mirror(i, h)