f(x) = x^(3) - x + 1
g(x) = 1 / 2^(x)
a = -1.36 (slider from -2 to 1, step 0.01)
h(x) = a * x + 3
p = If(x < 1.25, f, If[x < 2, g, h])
B = Point({2, p(2)})
A = Point({1.25, p(1.25)})
C = Point({1.25, f(1.25)})
D = Point({2, g(2)})
F(x) = (2 * x^(2) - 2) / (x^(2) + 4 * x + 3)
G(x) = ℯ^(x)
H(x) = (3 * x^(2) - 2 * x + 1) / (x - 1)