Relations and Functions Answers
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1
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Select all numbers that are in the domain.
A
-3B
-2C
-1D
0E
1F
22
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Select all numbers that are in the range.
A
-3B
-2C
-1D
0E
1F
2
4
Which function(s) are also one-to-one?
A
the mapping diagramB
the set of ordered pairs
6
The above is
A
a functionB
not a function7
What is the input variable?
A
m, the number of movies.B
c, the total cost.C
$14.99, the one-time charge.8
What is the domain of the function?
A
all real numbers mB
OptionC
Option10
Orange graph:> when x 1, y =
A
–2B
2C
–2 or 211
Question text not available
A
orange graphB
blue graph
13
{ (1, 3), (2, 5), (3, –4), (4, –3), (5, –1) }The above is
A
a functionB
not a function14
What is the output variable?
A
m, the number of movies.B
c, the total cost.C
$14.99, the one-time charge.15
Blue graph: when x 1, y =
A
–2B
2C
–2 or 217
The above is
A
a functionB
not a function18
Think about the relationship. Which equation models the cost c(m), of renting m movies?
A
c(m) = 3m – 14.99B
c(m) = 3m + 14.99C
c(m) = 14.99m + 319
What does the notation f(2) mean?
A
multiply f by 2B
the output (y-value) when x = 2C
the value of x when the output is 220
Question text not available
A
orange graphB
blue graphDid you find these answers helpful?
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