So in order to get to 0.1, you have to be even more negative. So this is going to be, this is going to be, I guess you could say, less than negative one. So if this is less than negative one, I'm multiplying it times 0.2, I'm going to get a negative value that is less than negative 0.2. And if I'm adding 0.1 to it, well, I'm still going to get a negative value. So over this yellow interval, g prime of x is less than zero. And it would be, I should have gotten a calculator, or I could have gotten a calculator out. I could have just evaluated a lot easier.