![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
The relation in figure is not a function because each element in the domain does not corresponds to exactly one element in the range.
\The domain of the function is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=763101a18eaa6592158ff5a769a27d45.png\")
.
The range of the function is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c072ecfb85aca789bd2b9cdea76d617e.png\")
.
The element![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6e99019a9117cd7de04d77526eb88938.png\")
of the domain is paired with more than one element of the range, i.e,![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=255011f02213834a62363fd8db9ee7ac.png\")
and ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d3135a78cc44aed0e21e890fe2085ea9.png\")
.
Thus, the relation in figure is not a function.
\![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The relation in figure is not a function.