So we can write f prime of 0 is equal to 0. So 0 is a critical point. The slope at 0 is 0, we don't know if it's a maximum or a minimum or an inflection point yet, or it could be, you know, we'll explore it a little bit more. And actually just so we get the coordinate, what's the coordinate? The coordinate x is 0, and then y is the natural log of x is 0, this just turns out, so it's the natural log of 27. So it's the natural log of, let me figure out what that is and get the calculator out. I said I wouldn't use a graphing calculator, but I could use a regular calculator.