So if that point corresponds to roughly right over there, then over here, our slope will become less and less and less negative. And then at this point, our slope would become zero, which would be right around there. So for example, our graph might look something like this. We just didn't see it. It fell off of the part of the graph that we actually showed. So I would actually say that this is a good candidate for being, the third function is a good candidate for being the derivative of the first function. So maybe we could say that this is f and that this is f prime.