And then you get x is equal to the principal root of the square root of y plus 1. So this we can write as x, or we can even write it as f of y if we want. f of y is equal to the square root of y plus 1. 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.