And we have a critical point at x equals two, right over there. And so let's think about what g prime is doing in the intervals between the critical values or on either side of the critical values. So let's think about, let's first think about this interval. Let me do it in this purple color. Let's think about the interval between negative infinity and zero. So if we think about this interval, so negative infinity and zero, that open interval. Well, if we look at g prime, the numerator is still going to be positive.