So let's say it's something like this. So once again, if I said at this time right over here, this is my rate, this doesn't tell me, for example, what my population is, this tells me what is my rate of change of a population. And we have seen in previous videos that if you wanna figure out the change in the thing that the rate is, that the rate is the rate of change of, say, the change in population, you would find the area under the rate curve between those two appropriate times. And why does that make sense? Well, imagine a very small change in time right over here. If you have a very small change in time and if you assume that your rate is approximately constant over that very small change in time, well then your change in, let's say we're measuring the rate of change of population here, your accumulation, you could say, is going to be your rate times your change in time, which would be the area of this rectangle. And so that would be the, roughly, that would be the area under the curve over that very, very small change in time.