b = 0.8 (slider from 0 to 1)
k = 4.1 (slider from 0 to 20)
d: x^(2) + y^(2) / b^(2) = k^(2)
f: y = 1
g: x = 4
c: x^(2) + y^(2) / b^(2) = 1
O = Intersect(xAxis, yAxis)
T = Intersect(c, yAxis, 2)
h = Line(T, xAxis)
A = Intersect(d, h, 1)
C = Intersect(g, h)
B = Intersect(d, h, 2)
i = Segment(A, B)