A = (1, -2)
B = (3, 2)
C = (5, -2)
D = (7, 2)
E = (9, -2)
F = (11, 2)
G = (13, -2)
f = PolyLine(A, B, C, D, E, F, G)
H = Point(xAxis)
g = Line(H, yAxis)
I = Intersect(g, f)
h = Line(I, xAxis)
J = Intersect(h, yAxis)