The inclined angle is .
If a non vertical line has inclination and slope , then .
Substitute in above equation.
The slope of the line is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ed247bf2c8d9c2777564ea0b7cccf284.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=371f18f1fbda6533f18090174fcd3044.png\")
and slope ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1ec76df660c5cb0f1700c9f5b86a9f9e.png\")
, then ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8ec123a790aa570961cc36bfafb169d9.png\")
.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ed247bf2c8d9c2777564ea0b7cccf284.png\")
in above equation.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9d090761124c58ab9024328e947c5174.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8571a971c1af637af6b77685673c41b8.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8571a971c1af637af6b77685673c41b8.png\")
.