Relations and Functions Answers
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1
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What is the range of the relation in the table below?xy–20–12041220
A
range:
B
range:
C
range:
D
range:
2
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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
3
Which relation represents a function?
A
StartSet (0, 0), (2, 3), (2, 5), (6, 6) EndSet
B
StartSet (3, 5), (8, 4), (10, 11), (10, 6) EndSet
C
StartSet (negative 2, 2), (0, 2), (7, 2), (11, 2) EndSet
D
StartSet (13, 2), (13, 3), (13, 4), (13, 5) EndSet
4
At which value in the domain does ?
A
x = negative 3
B
x = 0
C
x = 1
D
x = 4
5
Given , find .
A
–334B
–14C
45D
445
7
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)}8
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
9
Which of the following scenarios exhibits a function relation? Take the first set listed to be the domain of the relation.
A
the set of tree heights and the set of trees in a forestB
the set of car make and models and the set of people in a certain townC
the set of birthdays and the set of students in a classD
the set of people with Social Security cards and the set of Social Security numbers10
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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