Answer
See graph, domain $(-\infty,-2]\cup[2,\infty)$, range $(-\infty,\infty)$, asymptotes $y=\pm x$,
Work Step by Step
1. From the given equation, we have $a=b=2$
2. We can find the domain as $(-\infty,-2]\cup[2,\infty)$, range as $(-\infty,\infty)$.
3. The equations of the asymptotes can be found as $y=\pm x$
4. See graph.