Relations and Functions Answers
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1
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For what value of is the relation a function?
A
–1B
1C
2D
122
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Given , find .
A
–334B
–14C
45D
4453
In which function is x = 2 mapped to 32?
A
f (x) = Negative 3 x squared minus 4
B
g (x) = 4 (x + 3) squared minus 68
C
h (x) = 3 x
D
j (x) = 2x minus 62
4
At which value in the domain does ?
A
x = negative 3
B
x = 0
C
x = 1
D
x = 4
5
What is the domain of the relation graphed below?
A
domain: {–5, –4, –3, –2, 0, 1, 2, 3, 4, 5}B
domain: {–3, –2, 0, 1, 4}C
domain: {–5, –4, –3, 1, 2, 5}D
domain: {(–5, 0), (–4, 1), (–3, 4), (1, –2), (2, 4), (5, –3)}6
Which function rule models the function over the domain specified in the table below?xf(x)–7–11–1139411717
A
f(x) = 3x + 10B
f(x) = 2x + 3C
f(x) = 4x + 5D
f(x) = 3x – 107
Which set represents the same relation as the table below?xf(x)054269910
A
StartSet (0, 5), (4, 2), (6, 9), (9, 10) EndSet
B
StartSet (5, 0), (2, 4), (9, 6), (10, 9) EndSet
C
StartSet 0, 2, 4, 5, 6, 9, 10 EndSet
D
StartSet 2, 5, 9, 10 EndSet
8
What is the range of the function graphed below?
A
1 less-than-or-equal-to y less-than 4
B
Negative 3 less-than y less-than-or-equal-to 3
C
Negative 2 less-than-or-equal-to y less-than-or-equal-to 3
D
Negative 3 less-than-or-equal-to y less-than 4
9
Which table represents the same relation as the set ?
A
A 2-column table has 4 rows. The first column is labeled x with entries negative 6, 4, negative 4, 0. The second column is labeled y with entries negative 3, 2, negative 1, 2.
B
A 2-column table has 4 rows. The first column is labeled x with entries negative negative 6, negative 4, negative 3, negative 1. The second column is labeled y with entries 4, 0, 2, 2.
C
A 2-column table has 4 rows. The first column is labeled x with entries 6, 4, 3, 1. The second column is labeled y with entries negative 6, negative 4, negative 3, negative 1.
D
A 2-column table has 4 rows. The first column is labeled x with entries negative 4, 0, 2, 2. The second column is labeled y with entries negative 6, negative 4, negative 3, negative 1.
10
Which set represents the same relation as the graph below?
A
StartSet (4, negative 5), (negative 2, negative 3), (Negative 2, negative 1), (0, 2), (3, 3), (5, 4), (negative 4, 6) EndSet
B
StartSet (negative 5, 4), (negative 3, negative 2), (negative 1, negative 2), (2, 0), (3, 3), (4, 5), (6, negative 4) EndSet
C
StartSet (negative 5, 4), (negative 3, negative 1), (3, 3), (4, 5), (6, negative 4) EndSet
D
StartSet (4, negative 5), (negative 3, 2), (negative 1, 2), (2, 0), (4, 5), (6, 4) EndSet
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