Substitute in slope-intercept form.
Slope-intercept form .
(or) undefined
The slope of the line that passes through the points is "undefined".
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1f02e43ea81d90c7ff23473439995ea5.png\")
in slope-intercept form.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e606b255a4ba9e3857f26312bcc0a043.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0355f4afc5d9276f83329798d1c0d887.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b7766960c9ebc1c9f71e454a86efb54e.png\")
(or) undefined ![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")