The coordinates of A and F are 4 and 7.
AF = (Distance formula)
= or 11 (Subtract: )
The measure of AF line is or 11.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=707a2c183343ba0292feae71ec9e2654.png\")
4 and 7.![\"graph](\"http://www.mathskey.com/userfiles/image/Library/Geometry/graph_coordinates_A_B_minus4_minu1%281%29.gif\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8a3c08a55af902949a00ca6616c898ab.png\")
(Distance formula)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d5af763cbaa7975d9c432280192a9125.png\")
or 11 (Subtract: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=260f483aa48795a0ff9e6a00786a96d0.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=d5af763cbaa7975d9c432280192a9125.png\")
or 11.