A = Point(yAxis)
B = (4, 0)
c = Circle(A, B)
C = (-2, 6)
D = (0, 5)
a = Line(C, D)
E = Point(a)
F = Point(a)
C' = Mirror(C, c)
D' = Mirror(D, c)
E' = Mirror(E, c)
F' = Mirror(F, c)
G = Point(a)
G' = Mirror(G, c)