T = (5.5, -8.32)
B = (20.8, -9.08)
f = Line(T, B)
g = OrthogonalLine(T, f)
S_{3} = Point(g)
k_{3} = Circle(S_{3}, T)
C = (9.28, -4.5)
a = 0 (slider from 0 to 5, step 1)
D = (8.7, -4.82)
A = (16.1, -6.36)
i = Line(S_{3}, A)
E = Intersect(k_{3}, i, 2)
F = Midpoint(E, A)
c = Hyperbola(S_{3}, A, F)
d = Circle(F, A)
e = Parabola(A, f)
S_1 = Intersect(c, e, 4)
k_1 = Circle(S_1, A)
S_2 = Intersect(c, e, 3)
k_2 = Circle(S_2, A)