Relations and Functions Answers

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Select all numbers that are in the domain.

A
-3
B
-2
C
-1
D
0
E
1
F
2
3

The above is

A
a function
B
not a function
4

Which function(s) are also one-to-one?

A
the mapping diagram
B
the set of ordered pairs
5

The above is

A
a function
B
not a function
6

✔ –22–2 or 2

A
–2
B
2
C
–2 or 2
8

What is the input variable?

A
m, the number of movies.
B
c, the total cost.
C
$14.99, the one-time charge.
12

What is the output variable?

A
m, the number of movies.
B
c, the total cost.
C
$14.99, the one-time charge.
13

What does the notation f(2) mean?

A
multiply f by 2
B
the output (y-value) when x = 2
C
the value of x when the output is 2
15

orange graphblue graph

A
orange graph
B
blue graph
16

What is the domain of the function?

A
all real numbers m
B
Option
C
Option

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