![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
The relation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=956d3473d855b1f31ab20fedd726d917.png\")
![\"\"](\"/userfiles/image/Library/Algebra%202/x_co_ordinate_pa_63_po_27.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=c6fc813a8a79767960a2b551997cf502.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=656d2b319914d192e13f883de1451028.png\")
\ \
![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
Create a coordinate system and plot the ordered pairs.
\![\"\"](\"/userfiles/image/Library/Algebra%202/XY_CO_orinate_pa_63_po_27.gif\")
![\"\"](\"/userfiles/image/steps_images/step3.JPG\")
Draw the vertical lines through the points. Observe that there
\is no vertical line contains more than one of the points.
\This graph passes the vertical line test.
\![\"\"](\"/userfiles/image/Library/Algebra%202/xy_co_ordinate_2_pa_63_po_27.gif\")
Each element of the domain is paired with exactly one element of the range. Therefore the relation is a function. The graph consists of points that are not connected. So, the relation is discrete.
\![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
Yes, the relation is a function and discrete.
\