![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
The relation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=405ef16b2b6ef5832cd46572ff8e3f6d.png\")
.
![\"\"](\"/userfiles/image/Library/Algebra%202/x_co_ardinate_pa_63_po_25.gif\")
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=d9ad7f128e885f24a8aa36c6a009b73d.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=9d9070770bc709d1f87f4895563fc474.png\")
![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
Create a coordinate system and plot the ordered pairs.![\"graph](\"/userfiles/image/Library/Algebra%202/graph_coordinate_points_(-2,8)_(-2,5)_(3,7).gif\")
![\"\"](\"/userfiles/image/steps_images/step3.JPG\")
Draw the vertical lines through the points. Observe that one
\vertical line passes through more than one point.
\This graph fails the vertical line test.
\![\"graph](\"/userfiles/image/Library/Algebra%202/graph_coordinate_points_(-2,8)_(-2,5)_(3,7)_verticl_line.gif\")
One element of the domain is paired with two elements of the range.
\Therefore the relation is a not a function.
\![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
No, the relation is not a function.