So now let's look at some scenarios that we would have to pick up the pencil as we draw the function through that point, through that, when X is equal to C. So let's look at a scenario. Let's look at a scenario where we have what's often called a point discontinuity, although you don't have to know at this point, not no pun intended, the formal terminology for it. So let's say we have a function that, let's see, this is C. And let's say our function looks something like this. So we go like this, and at C, let's say it's equal to that. So F of C is right over here. Right over here. F of C would be that value.