Give a reason for your answer. Alright, so first let's just find the second derivative. So we already know that dy, let me give myself a little bit more space actually. We already know that the derivative of y with respect to x is equal to two x minus y. Now to find the second derivative, I just want to take the derivative of both sides of this with respect to x. So let's do that. So I could take the derivative of the left-hand side with respect to x, and the derivative of the right-hand side with respect to x.