Answer
Both graphs are same.
Work Step by Step
$f(x)=|x|$ is an absolute value function.
$g(x)=|-x|$ is a reflection of $f(x)=|x|$ across the $y$-axis.
But it will results in the same graph as $f(x)=|x|$ is an even function:
$$f(x)=|x|=|-x|=g(x)$$
