![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0dc7d8c75bb35004f7b31c06a0449a70.png\")
and ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=267d961505c3cd0fe68bad8d728e1605.png\")
.Observe the graph, it is a hyperbola and the graph has no intercepts.
\The domain and range are all real numbers except zero.
\The function is decreasing on the interval and .
Therefore, it is a reciprocal function.
\![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
Option ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=67d778fea72159bf61fcb660fabfd4de.png\")
is correct.