f(x) = (x^(3) * sin((pi * x)))
x_{-1} = Point(xAxis)
g = OrthogonalLine(x_{-1}, xAxis)
A = Intersect(f, g, (-1.2, -1.0156929159613934))
x_0 = Point(xAxis)
h = Line(x_0, g)
C = Intersect(f, h, (-0.8, 0.3009460491737464))
i = Line(A, C)
x_1 = Intersect(i, xAxis)
j = Line(x_1, h)
B = Intersect(f, j, (-0.8914285714285716, 0.2369578873258304))
k = Line(C, B)
x_2 = Intersect(k, xAxis)
l = Line(x_2, g)
D = Intersect(f, l, (-1.2300024654314143, -1.2306316383591855))
m = Line(D, B)
x_3 = Intersect(m, xAxis)
n = Line(x_3, j)
E = Intersect(f, n, (-0.9460949159496297, 0.14272692397736533))
p = Line(D, E)
x_4 = Intersect(p, xAxis)