A másodfokú függvény

a = 1 (slider from -5 to 5)
u = 0 (slider from -5 to 5)
v = 0 (slider from -5 to 5)
f(x) = (a * (x - u)^(2)) + v
V: (u, v)
szöveg2: "f(x) = " + (LaTeX[a]) + "(x - " + (LaTeX[u]) + ")^2 + " + (LaTeX[v]) + ""