![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
The relation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3fce6ab627eca6cc1068e8dd484f1cc7.png\")
![\"\"](\"/userfiles/image/Library/Algebra%202/x_co_ordinate_pa_63_po_28.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=1a1e01fa6ad0a0a45bb973f412072122.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=7b5a7300e43ae97082f11958cb144d89.png\")
\ \
![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
Create a coordinate system and plot the ordered pairs.
\![\"\"](\"/userfiles/image/Library/Algebra%202/xy_co_ordinate_pa_63_po_28.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.
\![\"\"](\"/userfiles/image/Library/Algebra%202/xy_co_ordinate_2_pa_63_po_28.gif\")
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
No, the relation is not a function.
\