Observe the graph:
The graph is horizontal line that crosses the - axis at .
Therefore, the graph represents a constant function.
Its domain and range are all real numbers.
The graph represents a constant function.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b1f02a70f7489dd3b8742e9e1c94d6d0.png\")
- axis at ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c1e3dda4c0e05cb917dcfd7925186bc2.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")