Test 2
Name: ________________________
Math 115 – 001
September 11, 2008
Clearly mark all answers where appropriate. Show all work. Partial credit may be given for work
shown, but full credit may not be given for correct answers with incomplete or incorrect work.
1.
(Matching, 1 points each, 12 points total) Match the following terms and formulas
with their definitions (not all terms will be used).
______ A joint variation relation.
______ A relation that sends each x value to exactly one y value.
______ A function of the form
c
bx
ax
x
f
+
+
=
2
)
(
______ The translation of
)
(
x
f
by
h
units vertically.
______ The vertical stretch of
)
(
x
f
by a factor of
h
.
______ The inverse function of
)
(
x
f
______ A direct variation relation.
______ A function of the form
k
h
x
a
x
f
+

=
2
)
(
)
(
______ The composition of two functions
f
and
g
______ The translation of
)
(
x
f
by
h
units horizontally.
______ A function that sends no two x values to the same y value.
______ An inverse variation relation.
A.
x
k
y
=
B. A function.
C. A relation.
D. Onetoone
E.
)
(
h
x
f

F.
h
x
f
+
)
(
G.
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 Fall '09
 Ms.Park
 Math, Inverse Variation, Polynomials, Inverse function, Polynomial long division

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