And to study how the enzyme functions, we have to actually look at the enzyme as it is down to that substrate. So in this particular case, so this is our starting point, and that's exactly where we get equation number one. So equation number one basically gives us the rank law of this reaction here, as the enzyme actually has the substrate at the active side and it transforms it into the product. And so the rate law of this reaction is given by equation number one. So the rate of this, which is the V knot, remember, the Y axis here describes the rate at which the enzyme actually transforms the substrate that is bound to the active side. And so this V knot is the same V knot that we have along the Y axis here.