y = f(x) = a(x-u)^2+v

a = 2.59 (slider from -5 to 5)
u = 3.74 (slider from -5 to 5)
v = 0.67 (slider from -5 to 5)
f(x) = ((a * (x - u)) * (x - u)) + v
V = Point({u, v})