Substitute in rate of change formula.
(Subtract: )
(Divide: )
The rate of change represented in the table is . \ \
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in rate of change formula.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9799be08e657da8f6a6367877919a8af.png\")
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(Subtract: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=38f9694af915de6ad3c615c2fbde88ff.png\")
)![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=fc982ed887b5445c12d001ec9aa1a746.png\")
(Divide: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cf52e2884851e84c37c47c28e0963c02.png\")
)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
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. \ \