Does the function F(x,y) = xy^(1/3) satisfy a Lipschitz condition on the rectangle {(x,y) : |x|≤h, |y|≤k}?

I understand a function being Lipschitz to mean that there exists a positive constant A such that:

|f(x,y_1) - f(x,y_2)| < A|y_1 - y_2|

I have no idea how to find A though.

Thanks! :)