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Calculus I Quiz
#3 September
16, 2002

Name____________________ R. Hammack Score
______

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**(1) ** In this problem, and .

**(a)**

**(b)**

You can simplify the above answer further, but don't forget to FOIL!!

** **

**(2)** Find the equation of the line that passes through the
points
and .
Please put your final answer in slope-intercept form, and simplify as much as
possible.

slope = *m* = =
-3

Using the fact we know the line has slope -3 and passes through the point (3,1),
the point-slope formula gives

**(3)**

** (a)**

** (b)** Find all solutions of the equation . Please
support your work with a picture involving the unit circle.

For x to be a solution of this equation, the point x on the unit circle must
have a y-coordinate of -1/2. The two such points with radian measure between
0 and 2π are amd

The solutions of the equation are thus ,
where *n *is an integer.