Now, let's actually stick with f. What is f of negative one? Well, they tell that to us right over here. f of negative one is equal to three. So f of negative one is equal to three. Now, g of negative one and g prime of negative one, they don't give it to us explicitly here, but we can figure it out. We know that, well, if g of x is equal to this, g of negative one is equal to one over negative one, which is equal to negative one. So this is equal to negative one.