f(x) = (x + 3.0) * (x^(2.0) / 2.0 - 2.0 * x + 2.0) / 4.0 + 1.0
A = Point(xAxis)
a = 1.27 (slider from 0.01 to 3, step 0.01)
B: (x(A) + a, 0.0)
A': (x(A), f(x(A)))
B': (x(B), f(x(B)))
b = Line(A', B')
c = Segment(A, A')
d = Segment(B, B')
C: (x(B), f(x(A)))
e = Segment(A', C)
g = Segment(C, B')