Answer
$y=|x|-5.5$
Work Step by Step
The graph of $y=|x|+k$, where $k$ is a negative number, translates the graph $y=|x|$ down $k$ units.
When we substitute $-5.5$ for $k$, the equation represents $y=|x|$, translated $5.5$ units down.
This gives us the equation $y=|x|-5.5$
