So the function begins increasing. That's why we say we have a minimum point right over there. So what I did right over here is to try to conceptualize what the function itself could look like given the derivative, in this case, switching from a positive derivative to a negative derivative across that critical point or going from a negative derivative to a positive derivative. That's why this is a criteria for a maximum point. This is a criteria for a minimum point. Well, with that out of the way, can we use this intuition that we just talked about to at least try to sketch the graph of f of x? So let's try to do it.