The point D is 4 units right to the origin, so its x-coordinate is and y-coordinate is 0.
The coordinates of point D is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d908a7df97ea85672a96fbfc88dc8b23.png\")
and y-coordinate is 0.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3578f94fe4df8d990db8f40aeaee0a62.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=3578f94fe4df8d990db8f40aeaee0a62.png\")
.