![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
Observe the graph:
\The set of ordered pairs are![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b7bb90024fea2218c54963d068ca4a72.png\")
.
Domain:
\The domain of the relation is the set of all first (![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8da2268e35b6b6daab9c47f71c4c8bf4.png\")
-coordinates) coordinates.
The domain of the relation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=345a9e2318e78210f4459ce822843cac.png\")
.
Range:
\The range of the relation is the set of second (![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b1f02a70f7489dd3b8742e9e1c94d6d0.png\")
-coordinates) coordinates.
The range of the relation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=31d6e81005454c28753f6877453c493c.png\")
.
Function:
\Yes;
\Because each element of the domain is paired with one element of the range.
\![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
One-to-one function:
\Yes;
\Each element of the domain is paired with exactly one element of the range.
\Onto function:
\Yes;
\Because each element of the range corresponds to an element of the domain.
\Therefore the relation is a function.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
Yes; the relation is a function.