Rate of change = .
The temperature changes from to and the time changes from 3min to 0min.
Rate of change =
Rate of change = . (Divide: )
So, the rate of change is , or a decrease of .
The rate of change is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f49dd7fc6145eedf800517d181a53c8f.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8c2fe801c9862b7a30dd7977c2114d2f.png\")
to ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4d2e758a3414e011be9cccd257f2d19b.png\")
and the time changes from 3min to 0min.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=13ed05b96ea5b52d4cb9cbfe4d9e4e4b.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=360bba66809d72c4ebe4b9b93fc88fda.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=805820a2b76a59fc28a7f9b7fc768bc1.png\")
. (Divide: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=805241895740f8a0b3a6397c589abd98.png\")
)![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=805820a2b76a59fc28a7f9b7fc768bc1.png\")
, or a decrease of .![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
.