![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
The relation is
\| \
x \ | \
\
y \ | \
| \
0.5 \ | \
\
-3 \ | \
| \
2 \ | \
\
0.8 \ | \
| \
0.5 \ | \
\
8 \ | \
\
\
\
\
\
\
Express the relation as ordered pairs ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3424c5ea3a12a05a91a5cce6d44ae95f.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=55e3b3884750594fe6c4572600f47206.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=bce36d94b358c3f0e7aa639d4dd94cdd.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.![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
Yes.