A function can be defined any which way. And as we'll see, it's actually quite straightforward to evaluate this. So g of negative two, g of negative two, and I'll do the negative two in a different color, g of negative two, well, what we do is we take this expression right over here, this definite integral, and everywhere we see an x, we replace it with a negative two. So this is going to be equal to the integral from zero to x of, and I'll write x in a second, f of t dt. Well, x is now negative two. This is now negative two. And so how do we figure out what this is?