Algebra Mini Worksheet
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3Name: ______________________ Class: _________________ Date: _________
ID: A
Algebra Mini Form B MA.912.A.2.3
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1
Which of the following relations is a function?
A. {(1, 0),(1, -1),(2, 0),(2, -1),(3, 0),(3, -1)}
B. {(1, 3),(-1, 5),(2, 7),(-2, 7),(3, 5),(-3, 3)}
C. {(-2, -1),(1, -2),(0, 0),(-1, -1),(-2, -2)}
D. {(0, 3),(1, 3),(-3, 3),(1, 2),(-3, 2),(1, 3)}
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2
Determine whether the pairing is a function. If it is a function, describe the rule that relates the
input value to the output value.
input
7
10
16
22
31
output
2
5
11
17
26
A. The pairing is not a function.
C. The pairing is a function. The rule is
“input value multiplied by 5.”
B. The pairing is a function. The rule is
D. The pairing is a function. The rule is
“subtract 3 from the input value.”
“subtract 5 from the input value.”
For f(x) = 3x + 4, find
f(x) = 17
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and find x such that
.
f(2)
10
A. 9; 7
C. 12;
3
13
B. 10;
D. 24; 7
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4
You’ve saved $120 and plan to spend $16 for each music CD you purchase. Write an equation
to represent d, the amount of dollars remaining, as a function of c, the number of CDs you
purchase.
A.
c = 16d
C.
c = 16d - 120
B.
d = 16c
D.
d = 120 - 16c
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