So are there x values where g takes on an absolute maximum value or an absolute minimum value? Sometimes you might call them a global maximum or a global minimum. So the first thing I like to think about is, well, what's the domain for which g is actually defined? And we know that in the natural log of x, the input into natural log, it has to be greater than zero. So the domain is all real numbers greater than zero. So x has to be greater than zero. Anything lateral log of zero is not defined.