Or we could say x is equal to a function of y, which is the square root of y plus 1. So what's the distance here at any point? Well, this distance, let me make it very clear. So it's going to be our total distance in the horizontal direction. So this first part, as we're doing it in a different color, you can't see. So this part right over here is just going to be the value of the function. It's going to give you an x value.