At time equals two, our position is down to one. And then we switch direction, and then over the next, if we say that time is in seconds, over the next second, we get back to five. Now, an interesting thing to think about in the context of calculus is, well, what is our velocity at any point in time? And velocity, as you might remember, is the derivative of position. So let me write that down. So we're gonna be thinking about velocity as a function of time. And you could view velocity as the first derivative of position with respect to time, which is just going to be equal to, we're gonna apply the power rule and some derivative properties multiple times.