- Determine the domain and range of .
There are ordered pairs plotted for all -values from to . The domain is .
- Determine intervals on which and intervals on which .
whenever the graph of lies strictly above the -axis. This appears to be the case when or . Therefore, the solution of in interval notation is .
whenever the graph of lies strictly below the -axis. This appears to be the case when or . Therefore, the solution of in interval notation is .