So if we basically have some type of unknown inhibitor, we take out the inhibitor, then we plot the red curve, and then we place that inhibitor into our solution and we plot the purple curve. If this is how the curve changes, we know that it must be a competitive inhibitor. Now, what about uncompetitive? Well, let's recall what well, actually, let's first look at the following plot. So, again, the red describes the absence and the purple describes the presence of that uncompetitive inhibitor. And notice what happens.