a = 4.63 (slider from -1 to 7)
f: x = a
A: (3, 2)
c: y = (0.25 * x^(2)) - (1.5 * x) + 3.25
B = Intersect(c, f)
g = Tangent(B, c)
B': (x(B), (2 * y(B)))
h = Ray(B, B')
i = OrthogonalLine(B, g)
B'_1 = Mirror(B, i)
B'' = Mirror(B', i)
h' = Ray(B'_1, B'')