![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
Choose any two points on the line and find the rate of change between them.
\We will the points at (2, 4) and (6, 6).
\(2, 5)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8f4e281dce37b6008da3c587098b88c6.png\")
2 weeks, 5 inches plant height.
(6, 6)![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8f4e281dce37b6008da3c587098b88c6.png\")
6 weeks, 6 inches plant height.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
Rate of change = ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9f4627bef22afe6115b866d1208d5d06.png\")
.
The plant height changes from 6 Inches to 5 inches and the weeks changes from 6 to 2.
\Rate of change = ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4971d1e52354e72a5993fe4d98f49710.png\")
Rate of change = ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=24cec576d35395cae5373ff2bcb63097.png\")
Rate of change = ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ec03dd19aae0b8ffa1dfb7e0c034c010.png\")
.
So, the rate of change is ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ec03dd19aae0b8ffa1dfb7e0c034c010.png\")
, or a increase of 1 Inc per 4 weeks. ![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The rate of change is .