![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
Observe the mapping figure:
\The set of ordered pairs are![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1d473ab96b849804414579953bd4df1b.png\")
.
Domain:
\The domain of the relation is the set of all first (![\"\"](\"/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=3ecb288baf0144082af7269b591968b5.png\")
.
Range:
\The range of the relation is the set of second (![\"\"](\"/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=f0aa0efc3d4284062862cf307ac2558a.png\")
.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
Function:
\Yes;
\Because each element of the domain is paired with one element of the range.
\One -to-one function:
\Yes;
\Each element of the domain is paired with exactly one element of the range.
\Onto:
\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.