T = (2, -2)
ty: y(T)
tx: x(T)
H = Point(yAxis)
hy: y(H)
c: hy
b: (2.0 * ty - 2.0 * hy) / tx^(2.0)
a: (hy - ty) / tx^(4.0)
f(x) = a * x^(4.0) + b * x^(2.0) + c
f'(x) = f'(x)
f''(x) = f''(x)
Text1: "f(x) = " + a + "x⁴ + " + b + "x² + " + c
d = OrthogonalLine(T, yAxis)