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College Algebra Exam #2
Spring 2005
Name _____________________________
Show all your work on this paper.
Solutions without correct supporting work will not be accepted.
1.
Which of the following relations represent functions?
Write “yes” in the blank if it is a function and “no” if
it is not a function.
(2 points each)
_______ a.
{(2,3), (3,2), (2,1), (1,2), (0,2)}
_______
c.
_______ b.
2.
a.
Write the equation of the line passing through the points (1,4) and (3,2).
Put your answer in slope
intercept form.
(8 points)
b.
What would be the slope of a line that is perpendicular to the line in part (a)?
________________ (2 pts)
3.
Given
1
3
2
)
(
2
+

=
x
x
x
f
and
5
)
(

=
x
x
g
, find:
(10 points)
a.
)
)(
(
x
g
f
+
b.
)
)(
(
x
f
g
c.
h
x
f
h
x
f
)
(
)
(

+
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View Full Document 4.
The table lists the average annual cost (in dollars) of tuition and fees at a private 4year colleges for the
selected years.
(10 points)
Year
Tuition and Fees (in dollars)
1990
9,340
1992
10,448
1994
11,719
2000
16,233
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This note was uploaded on 01/12/2012 for the course MATH 1204 taught by Professor Duck during the Spring '08 term at NorthWest Arkansas Community College.
 Spring '08
 DUCK
 Algebra

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