If I scale up the vertical dimension by c, so this is, I have essentially, this is now c times alpha, what's the area going to be? Well, it's going to be c alpha times beta. Or another way to think of it, I have just taken, when I scale one of the dimensions by c, I take my old area and I scale up my old area by c. And that's what we're doing. We're scaling up the vertical dimension by c. When you multiply c times f of x, f of x is giving us the vertical height. Now, obviously, that changes as our x changes, but when you think back to the Riemann sums, the f of x is what gave us the height of our rectangles. We're now scaling up the height, or scaling, I should say, because we might be scaling down, depending on the c. We're scaling it, we're scaling one dimension by c. If you scale one dimension by c, you're going to scale the area by c. So this right over here, the integral, let me just rewrite it, the integral from a to b of c f of x dx, that's just going to be the scaled, we're just going to take the area of f of x, so let me do that in that same color. We're going to take the area under the curve f of x from a to b f of x dx, and we're just going to scale it up, we're going to scale it up by this c. We're just going to scale it up by this c. So you might say, okay, maybe I could have felt that that was, you know, if it was a c inside the integral, now I can take the c out of the integral.