![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The average rate of change of f formula is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1336558185941b5abf6fc10097fb4b54.png\")
.
The average rate of change of ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1bd4a89b758ef72d1bf45c9e236aec50.png\")
from 1 to 3.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=46a99b731ea1e112fc3060734a6fa310.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5e5a065fa71509619802ad9a80b7b34b.png\")
(Simplify)
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c1aece059006fa7118553672544b87ef.png\")
(Simplify)
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7d186199405ede05920d3f0e97e181cc.png\")
(Simplify)
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c41f43d5a4ff00e050b78435cf46d89c.png\")
(Simplify) ![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The average rate of change of f is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8649adcc4597ea7b34c9458bec9d07aa.png\")
.