Well let's see, we have a triangle, its width here is four, its height is four, four times four is 16, which would be the area of this entire square, we take half of that, it's eight. Now we don't just add it to it, because once again, this is going to be negative area, the graph over here is below the t axis. So this we would say, this integral is going to evaluate to negative eight. Once again, why is it negative eight? Because the graph is below the t axis. And so what do we get? We get g of four, which is this area, essentially minus this area, 4.5 minus eight is going to be, let's see, four minus eight is negative four, add a.5, that's negative 3.5.