![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The line equation in slope-intercept form is ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9431600650ad4fcaf106aa1644dda8c2.png\")
, where m is the slope and b is the y-intercept.
Find the y-intercept value by replacing m with 3, y with – 3 and x with 3 in the equation .
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=25fbec670625582aa1ed9210e625906a.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=13bb243bfa41fee7d97a2aa7d4a79950.png\")
Subtract 9 from each side.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=aa0692f0af8a0f8db9d3a10feb0c02fe.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=676f163816560ce39cff763ab6869220.png\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
Replace m with 3 and b with –12 in the equation .
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=40083e499bdaf4d7ebf538c03ebfbb09.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=187f567d7389c78c77bfc464c8e3f92a.png\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The slope-intercept form of the line equation is ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=187f567d7389c78c77bfc464c8e3f92a.png\")
.