f(x) = x^(2)
g(x) = (2 * x^(2))
h(x) = x^(2) + (3 * x)
i(x) = (-0.5 * x^(2))
j(x) = (-x^(2)) + (3 * x)
k(x) = x^(3)
A = Point(f)
l = Tangent(A, f)
B = Point(g)
m = Tangent(B, g)
C = Point(h)
n = Tangent(C, h)
D = Point(i)
p = Tangent(D, i)
E = Point(j)
q = Tangent(E, j)
F = Point(k)
r = Tangent(F, k)