And so the velocity, the rate of that reaction will be small. And that makes sense, because if Km is small, that means the substrate is not going to bind very well to that active side. And if it can't bind well, it will not spend long enough time to basically be catalyzed into that product. On the other hand, if Km is low, this ratio is high. And so v not is high. And so if Km is low, that means the affinity for that substrate and active site is high.