On either side of this critical point. And I could draw a little number line here to really help us visualize this. So, if this is negative one, this is zero, this is, let's see, one e to the, this is gonna be like one over, oh boy, this is, this is going to be a little bit less than one. So let's see, let me plot one here, and then two here. And so we have a critical point at one over the square root of e. Let me put it right over there. One over the square root of e. And we know that we're only defined from, for all x is greater than zero. So let's think about the interval between zero and this critical point, right over here.