Now this gets interesting, and I encourage you to pause your video and think about it. What would be the displacement over the first 10 seconds? Well, we would just do the same thing, the integral from zero to 10 of our velocity function, our one-dimensional velocity function, dt. And so that would be the area from here all the way to right over there, so this entire area. But you might appreciate, when you're taking a definite integral, if we are below the t-axis and above the function like this, this is going to be negative area. And in fact, this area and this area are going to exactly cancel out, and you're going to get zero meters. Now you might be saying, how can that be?