Unit 1 Functions Pre Test PDF

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Summary

This is all about unit 1 study guide and the answers...

Description

1a ) The amount of time it takes to complete a reading assignment might be a function of which of the following? #

Choice

A.

The number of pages in the assignment

B.

The year the book was published

C.

The cost of the book

Question 2 2a ) Is the following graph a linear function, a nonlinear function, and/or a relation?

#

Choice

A.

Linear function, but not a relation

#

Choice

B.

Nonlinear function and a relation

C.

Nonlinear function, but not a relation

D.

linear function and a relation

Question 4 4a ) The graph of a function never has two different points with the same x-coordinate because

.

#

Choice

A.

each input value is mapped to a single output value.

B.

the graph of a function cannot be a straight line.

C.

each input value is mapped to more than one output value.

D.

the graph of a function is a vertical line.

Question 5 5a ) Which of the following could be the equation of the graph shown below? Check all that apply.

#

Choice

A.

y = -4x + 2

B.

3x + 2y = 6

C.

y=5

D.

2x - y = 7

Question 9 9a ) What is the y-intercept of the function, represented by the table of values below?

#

Choice

A.

6

B.

4

C.

2

D.

8

Question 10 10a ) Which of the following is the equation of a line parallel to the line y = 3x + 2, passing through the point (10,1)? #

Choice

A.

3x - y = 29

B.

3x + y = 29

C.

-3x + y = 29

D.

-3x - y = 29

Question 11 11a ) Which of the following is the equation of a line perpendicular to the line y = -10x + 1, passing through the point (5,7)?

#

Choice

A.

B.

C.

D.

Question 12 12a ) Which of the following best describes the graph shown below?

#

Choice

A.

This is the graph of a function, but it is not one-to-one.

B.

This is the graph of a linear function.

#

Choice

C.

This is not the graph of a function.

D.

This is the graph of a one-to-one function.

Question 13 13a ) Which of the following values are in the range of the function graphed below? Check all that apply.

#

Choice

A.

2

B.

5

C.

1

D.

1/2

E.

-1

Question 14 14a ) Which of the following values are in the range of the function graphed below? Check all that apply.

#

Choice

A.

2

B.

0

C.

1

D.

-4

E.

-1

F.

4

Question 15 15a ) The table below shows some input and output values for a function named F(n). Which of the following equations describes F(n)?

n

F(n)

0

1

1

11

2

21

3

31

5

51

10

101

#

Choice

A.

F(n) = n + 1

B.

F(n) = 10n + 1

C.

F(n) = 11n

Question 16 16a ) The table shows how the distance traveled by a cargo ship is changing over time.

Time (in hours)

Distance Traveled (in miles)

2

36

4

72

6

108

8

?

10

180

What value is missing from the table? #

Choice

A.

140

B.

144

C.

126

D.

110

Question 19 19a ) Does this table represent a function? Why or why not?

#

Choice

A.

No, because two of the y-values are the same.

B.

Yes, because there are two x-values that are the same.

C.

Yes, because every x-value corresponds to exactly one y-value.

D.

No, because one x-value corresponds to two different y-values.

Question 20 20a ) What is the domain of the function shown in the table?

#

Choice

A.

{2, 4, 6, 8}

B.

{3, 4, 5, 6}

#

Choice

C.

{2, 3, 4, 5, 6, 8}

D.

(2, 3), (4, 4), (6, 5), (8, 6)

Question 21 21a ) Does this set of ordered pairs represent a function? Why or why not? {(–1, 5), (0, –3), (2, 7), (4, 0), (7, 5)}

#

Choice

A.

No, because two of the y-values are the same.

B.

Yes, because every x-value corresponds to exactly one y-value.

C.

Yes, because there are two x-values that are the same.

D.

No, because one x-value corresponds to two different y-values.

Question 22 22a ) Does this graph show a function? Explain how you know.

#

Choice

A.

No; the graph fails the vertical line test.

B.

Yes; there are no y-values that have more than one x-value.

C.

No; there are y-values that have more than one x-value.

D.

Yes; the graph passes the vertical line test....