![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
The graph is
\![\"graph_the_points_(-1,4),(2,3)(2,2)(3,1).gif\"](\"/userfiles/image/Library/Algebra%202/graph_the_points_(-1,4),(2,3)(2,2)(3,1).gif\")
The relation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=37e3d6f0232beb62a428c658aab18437.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=5dbaceb1baa58b5affbe7c81af774ef5.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=81fd2945dfd99b5ccbea483f65e46bde.png\")
![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
Draw the vertical lines through the points. Observe that one vertical line passing through two points. This graph fails the vertical line test. Therefore the relation is not a function.
\ \![\"graph](\"/userfiles/image/Library/Algebra%202/graph_the_points_(-1,4),(2,3)(2,2)(3,1)_and_vertical_line.gif\")
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
No.