Answer
$\textbf{The graph of $g$ represents the graph of $f$ reflected along the $x$-axis}$
Work Step by Step
$f(x)=\log x$ $,$ $g(x)=-\log x$
Graph both functions in the same viewing rectangle (The graph is shown below) and describe the relationship of the graph of $g$ to the graph of $f$:
$\textbf{The graph of $g$ represents the graph of $f$ reflected along the $x$-axis}$