The slope is going to be equal to, let's start with this point up here, just because it seems to be larger. So we want a change in y. So this value right here, this y value, is f of x naught plus h. I just evaluated this guy up here. It looks like a fancy term. But all it means is, look, the slightly larger x, I'll evaluate its y-coordinate. Where the curve is at that value of x. So that is going to be, so the change in y is going to be f of x naught plus h. That's just the y-coordinate up here.