P(80|88)

Graph

a(v) = If[v ≥ 0, (v / 10 * 3) + (v / 10 * v / 10)]
b: a(120)
c: a(160)
A: (80, 0)
P: (80, a(80))
B: (0, a(80))
v = Vector(P, B)
f = Segment(A, P)
d = false