Substitute in rate of change formula.
(Subtract: )
(Cancel common terms)
The rate of change represented in the table is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f0286191a82cf0b0fe71656f12a77d90.png\")
in rate of change formula.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=92a52b9271fab68131e143478fac8747.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cc9eac6557cf5e1b99b985961de35ec1.png\")
(Subtract: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=075e163bcae65651e5a330725e92166b.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ebc91fc9198345de32627d3fada72e6e.png\")
(Cancel common terms)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d76b1dff592d3edd6850b340057b4cc5.png\")
.