m: 1
p(x) = (1 / 4 * x^(2))
k = 2 (slider from -5 to 5, step 1)
s_2(x) = (m * x)
f_2(x) = p(x) + s_2(x)
Q = Point(yAxis)
g: s_2
h = Line(Q, yAxis)
i: y = (m * x) + y(Q)
j = Line(Q, h)
H, I = Intersect(f_2, i)
M = Midpoint(H, I)
l = Segment(H, I)
n: y = y(Q)
L, M_1 = Intersect(p, n)
q = Segment(L, M_1)
f: y = 0
r = OrthogonalLine(L, xAxis)
s = OrthogonalLine(I, xAxis)
A = Intersect(r, f)
B_1 = Intersect(s, f)
C = Intersect(g, s)
D = Intersect(g, r)
v1, a, b, m_1, l_1 = Polygon(A, B_1, M_1, L)
v2, d, c, i_1, h_1 = Polygon(D, C, I, H)
B: (0, 0)