![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
The table is,
\\
| \
x \ | \
\
y \ | \
| \
0 \ | \
\
7.5 \ | \
| \
1 \ | \
\
9.5 \ | \
| \
2 \ | \
\
11.5 \ | \
| \
3 \ | \
\
13.5 \ | \
Express the relation as ordered pairs. ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=13267199bb846e075becd6893e3b0d29.png\")
![\"\"](\"/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=91fafea9ba9c8f86b286bda6f1871b9f.png\")
The range of the relation is the set of first (y-coordinates) coordinates.
\The range of the relation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c4ad9f08237febff02e66e94a75820e3.png\")
![\"\"](\"/userfiles/image/steps_images/step3.JPG\")
Each element of the domain is paired with exactly one element of the range.
\Therefore the relation is a function.
\The answer is yes.![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The relation is a function.