Section 3.9  Read the entire section.  Answer the following questions by 7:00 am.  Send an e-mail with subject line MA251 to .

1) Fill in the blank:  The idea of this section is to study the rate of change of one quantity using the rate of change of another quantity since this second rate of change may be easier to ________. 

1. measure

Darcey Jones

2) Fill in the blank:  Example 1 uses a formula for the volume of a sphere.  If you do not happen to have this formula memorized, you could find it on reference page ____ at the front or back of your text.  (Provide the page number).

2. reference page 1

Deonte Johnson

3) Fill in the blank:  In each of the examples in this section, Dr. Stewart differentiates with respect to _________ (give the name of a quantity, not a variable).

3. Time

Hugh Pinckley