Math 112 Final Exam Study Aid Worksheet With Answer Key Page 30
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39Math 112
Final Exam Study Aid
30 of 39
104. The given table lists the day, y, that there were x bacteria (in thousands).
x 1 10 100 1,000 10,000
y
1
3
5
7
9
Find the values of a and b so that f (x) = a + b log (x) models the data exactly.
(A) a = 1, b = 2
(B) a = 2, b = 2
(C) a = 1, b = 1
(D) a = 2, b = 1
(E) None of these
105. If f (x) is a one-to-one function, and f (2) = 7, then which of the following CANNOT
be true?
1
1
(A) f (7) = 2
(B) f
(7) = 2
(C) f
(5) = 3
(D) f ( 2) = 4
(E) f ( 2) = 7
1
106. If h(x) = 20x
62, what is h(h
(6))?
(A) 2
(B) 58
(C)
6
(D) 6
(E) None of these
1
107. If G(x) =
4
x, what is G
(x)?
1
1
1
1
3
(A) G
(x) =
(B) G
(x) =
4
x
(C) G
(x) = 4
x
4
x
1
3
(D) G
(x) = x
+ 4
(E) None of these
108. If the point (2, 6) is on the graph of f (x), which of the following points must be on the
1
graph of f
(x)?
1
(A) ( 2, 6) (B)
2,
(C) (6, 2)
(D) (2, 6)
(E) None of these
6
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