![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
Observe the graph:
\The graph is a slant line that crosses the ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8da2268e35b6b6daab9c47f71c4c8bf4.png\")
-axis at ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0ff59e33933fe33e61a847505ec40c73.png\")
and ![\"\"](\"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=d1622611fc88fa0fbe88f093bcb90f93.png\")
.
It is the graph of parent function ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7064e7a30eda712f37b4af317ec3f0b6.png\")
shifted by ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5101158304d68bb8f8fc315c0a10b9f1.png\")
to the left.
Therefore, the graph represents a linear function.
\Its domain and range are all real numbers.
\![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The graph represents a linear function.