So to answer this question, let's try to rewrite the same exact function definition slightly differently. So let's say f of x is going to be equal to, and I'm going to think of two cases. I'm going to think of the case when x is greater than 3 and when x is less than 3. So when x is, we'll do this in two different colors actually. When x, do it in green, that's not green. When x is greater than 3, what does this function simplify to? Well, whatever I get up here, I'm going to get a positive value up here.