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. So V Naught, the rate at which the substrate is transformed in the active side, is equal to the product of the rate constant K two of this reaction multiplied by the concentration of this molecule, the complex, this intermediate molecule, by the way, these are reactants, these are products. And this is an intermediate molecule that exists between the reactants and the product. Now, the problem with this equation is, remember, we ultimately want to basically derive a mathematical equation that describes this curve.