![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
The relation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d505221e2641e875fa9276befe1e5d12.png\")
.
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=b3eebf2331e4d4494c0b831ec34ac7c7.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=67d6a4e74c797c35f77eb605115f0dc3.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_(3,5)_(4,5)_(6,5).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. ![\"graph](\"/userfiles/image/Library/Algebra%202/graph_coordinate_points_(3,5)_(4,5)_(6,5)_vertical_lines.gif\")
Each element of the domain is paired with exactly one element of the range. Therefore the relation is a function and this is a one-to-one 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.