A = (2, 3)
B = (4, 1)
a = Line(A, B)
C = Point(a)
D = (7, 0)
b = Line(C, D)
E = (6, 0)
F = (6, 1)
c = Line(F, E)
G = (4, -1)
H = (5, -1)
d = Line(G, H)
I = Intersect(a, b)