![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
A rational function may or may not have a vertical asymptote.
\If the domain of the rational function is all real numbers, then there is no vertical asymptote.
\Consider the function is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9f85d9d80ecfc15e5ee1b08623c771d8.png\")
.
The domain of the function is all possible values of ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8da2268e35b6b6daab9c47f71c4c8bf4.png\")
.
Re write the expression as ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=59bdfe015f2e1d8c43000f0b8f4b1de3.png\")
.
Cancel common terms.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e2a77f06be084ba522d1d361b9ede67c.png\")
.
The domain of ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ad56b5eb1a337bdf8298088e524dfe20.png\")
is all real numbers.
The function does not have any vertical asymptote.
\Every rational function does not have a vertical asymptote.
\![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
Every rational function does not have a vertical asymptote.
\The statement is false.