P: (1, 0)
Q: (3, -2)
R: (5, 4)
S: (7, 0)
A = Intersect(xAxis, yAxis)
f = Ray(P, A)
B = (9, 0)
g = Ray(S, B)
h = Segment(P, Q)
i = Segment(Q, R)
j = Segment(R, S)