And we'll do some worked examples that work through that a little bit more. Now, the last concept we will touch on in this video is the idea of acceleration. And acceleration, you could view as the rate of change of velocity with respect to time. So acceleration as a function of time is just going to be the first derivative of velocity with respect to time, which is equal to the second derivative of position with respect to time. It's just going to be the derivative of this expression. So once again, using the power rule here, that's going to be six t, and then using the power rule here minus six, and once again, we will restrict the domain. And we can graph that as well.