![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The table is
\| \
x \ | \
\
1 \ | \
3 | \8 | \7 | \3 | \
| y | \4 | \2 | \9 | \6 | \4 | \
Express the relation as ordered pairs ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=651a7760fb31e183707ed991a1424812.png\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
The domain of the relation is the set of all first (x-coordinates) coordinates.
\The domain of the relation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=bb3c6422ef2b3de83fcb74d9febd1c76.png\")
.
The range of the relation is the set of second (y-coordinates) coordinates.
\The range of the relation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2b6d39c53fac3f60d1c0dc1bbcb6a9a4.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step3.JPG\")
This is not a function because 3 in the domain is paired with two range values.
\Therefore the relation is not a function.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
No.