In fact, let me do that. So let me draw one, maybe where F of B is less than F of A. So that's my Y axis, and this is my X axis. And once again, A and B don't both have to be positive. They could both be negative. One could be, A could be negative, B could be positive, and maybe in this situation, then F of A and F of B, it could also be positive or negative. But let's take a situation where this is F of A.