f = F '

F(x) = F_0(x) + C

P(x_0, y_0)

C = 0 (slider from -5 to 5, step 0.1)
F(x) = ((cos(x) * sin(x - 4)) * ((-0.07 * x^(2)) + (0.83 * x))) + 2.7 + C
f(x) = F'(x)
F_0(x) = ((cos(x) * sin(x - 4)) * ((-0.07 * x^(2)) + (0.83 * x))) + 2.7
P = (3.32, 2)