AnswersFL-1200330-Algebra 2 Sem 1 - FlexRelations and Functions

Relations and Functions Answers

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1
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Select all numbers that are in the domain.

A
-3
B
-2
C
-1
D
0
E
1
F
2
2
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Select all numbers that are in the range.

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

Find the values of a and b that complete the mapping diagram.a = b =

Question illustration
Answer:

0

4

Complete the inequality below to describe the domain of the graph shown.Domain: 4

Question illustration
Answer:

-4

5

The above is

A
a function
B
not a function
6

{ (1, 3), (2, 5), (3, –4), (4, –3), (5, –1) }The above is

A
a function
B
not a function
7

The above is

A
a function
B
not a function
8

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

A
the mapping diagram
B
the set of ordered pairs
9

Orange graph:> when x 1, y =

A
–2
B
2
C
–2 or 2
10

Blue graph: when x 1, y =

A
–2
B
2
C
–2 or 2
11

Question text not available

A
orange graph
B
blue graph
12

Question text not available

A
orange graph
B
blue graph
13

What is the input, or independent variable?

A
f(x)
B
x
C
y
14

What is the output, or dependent variable or quantity?

A
x
B
f(x)
C
y
15

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
16

What is the input variable?

A
m, the number of movies.
B
c, the total cost.
C
$14.99, the one-time charge.
17

What is the output variable?

A
m, the number of movies.
B
c, the total cost.
C
$14.99, the one-time charge.
18

Think about the relationship. Which equation models the cost c(m), of renting m movies?

A
c(m) = 3m – 14.99
B
c(m) = 3m + 14.99
C
c(m) = 14.99m + 3
19

What is the domain of the function?

A
all real numbers m
B
Option
Option B
C
Option
Option C

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