And it's equal to the definite integral between t is equal to negative three and t is equal to x of our lower case g of t, g of t dt. So given how we have just defined capital G of x, let's see if we can find some values. So let's evaluate the function capital G at x is equal to four. Let's also evaluate the function capital G at x is equal to eight. And I encourage you to pause the video right now and try to think about these on your own, and then we can work through them together. So let's tackle capital G of four first. So this is going to be, well, if x is equal to four, this top boundary is going to be four.