Our function is below the x-axis. So we'll figure out this area, and then it's going to be negative. So this is a half of a circle of radius one. And so the area of a circle is pi times r squared, so it's pi times one squared. That would be the area if we went all the way around like that. But this is only half of the circle, so divided by two. And since this area is above the function and below the x-axis, it's going to be negative.