lesson practice a 1.7 for use with pages 42 index the table shows the apparent a p 65 70 75 65 80 85...

Download LESSON Practice A 1.7 For use with pages 42 Index The table shows the apparent A P 65 70 75 65 80 85 90 95 0 0 70 75 80 85 90 Apparent temperature (F) 95 Air temperature (F) temperature

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  • Name Date Co

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    47Algebra 1

    Chapter 1 Resource Book

    Complete the statement.

    1. The ? axis of the graph of a function is labeled with the input variable.

    2. The ? axis of the graph of a function is labeled with the output variable.

    Write the ordered pairs that can be formed from the table.

    3. Input Output

    0 2

    1 4

    2 6

    3 8

    4.Input Output

    3 2

    6 2

    9 2

    12 2

    5.Input Output

    10 4

    9 8

    8 12

    7 16

    Identify the ordered pairs in the graph. Then identify the domain and range.

    6.

    x

    y

    O 1 2 3

    1

    4 5 6

    2

    3

    4

    5

    67.

    x

    y

    O 2 4 6

    2

    8 10 12

    4

    6

    8

    10

    12 8.

    x

    y

    O 1 2 3

    2

    4 5 6

    4

    6

    8

    10

    12

    9.

    x

    y

    O 1 2 3 4 5 6

    2

    4

    6

    8

    10

    1210.

    x

    y

    O 122232425

    2

    4

    24

    26

    6 11.

    x

    y

    O 1 2 3 422

    2

    4

    24

    26

    6

    Graph the function.

    12. y 5 x 1 5 13. y 5 x 2 3 14. y 5 3x

    Domain: 0, 1, 2, 3 Domain: 6, 5, 4, 3 Domain: 1, 3, 5, 7

    y

    O x1 2 3 4

    2

    4

    6

    8

    10

    x

    y

    O 2 4 6 8

    1

    2

    3

    4

    x

    y

    O 2 4 6

    5

    8

    25

    20

    15

    10

    LESSON

    1.7 Practice AFor use with pages 42248

    LES

    SO

    N 1.7

    LAHA111FLCRB_C01_047-060.indd 47LAHA111FLCRB_C01_047-060.indd 47 1/19/09 4:43:41 PM1/19/09 4:43:41 PM

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    48Algebra 1Chapter 1 Resource Book

    Match the rule for the function with its graph.

    15. y 5 6x 16. y 5 6x 2 1 17. y 5 x 1 6

    18. y 5 1 }

    6 x 19. y 5 x 2 6 20. y 5 6x 1 1

    A.

    x

    y

    O

    2

    4

    6

    8

    10

    12

    1 2 3 4 5

    B.

    x

    y

    O

    1

    2

    3

    4

    5

    6

    2 4 6 8 10

    C.

    x

    y

    O

    4

    8

    12

    16

    20

    24

    1 2 3 4 5

    D.

    x

    y

    O

    1

    2

    3

    4

    5

    6

    5 10 15 20 25

    E.

    x

    y

    O

    3

    6

    9

    12

    15

    18

    1 2 3 4 5

    F.

    x

    y

    O

    4

    8

    12

    16

    20

    24

    1 2 3 4 5

    21. Hourly Pay The table shows the pay d (in dollars) as a function

    h

    d

    2 4 6

    10

    800

    20

    30

    40

    50

    60

    Pay

    (do

    llars

    )

    Hours worked

    of the number of hours worked h. Graph the function.

    Hours worked, h 1 2 3 5 8

    Pay (dollars), d 6.75 13.50 20.25 33.75 54

    22. Heat Index The table shows the apparent

    A

    P

    65 70 75

    65

    80 85 90 9500

    70

    75

    80

    85

    90

    95

    Ap

    par

    ent

    tem

    per

    atu

    re (

    F)

    Air temperature (F)

    temperature P (in degrees Fahrenheit), or thetemperature as it feels to your body, as a function of the air temperature A (in degrees Fahrenheit) when there is 10% humidity. Graph the function. Then use your graph to predict the apparent temperature when the air temperature is 105F and the humidity is 10%.

    Air temperature (F), A 70 75 80 85 90 95

    Apparent temperature (F), P 65 70 75 80 85 90

    LESSON

    1.7 Practice A continuedFor use with pages 42248

    LES

    SO

    N 1

    .7

    LAHA111FLCRB_C01_047-060.indd 48LAHA111FLCRB_C01_047-060.indd 48 1/19/09 4:43:42 PM1/19/09 4:43:42 PM

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    A4Algebra 1Chapter 1 Resource Book

    12. a. the number of plants left; the number of plants planted b. y 5 12 2 xc.

    x 0 1 2 3 4 5

    y 12 11 10 9 8 7

    x 6 7 8 9 10 11 12

    y 6 5 4 3 2 1 0

    Range: 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0

    13. y 5 9x 14. y 5 5x 1 25; $65

    Practice Level B

    1. independent 2. dependent 3. function

    4. function 5. not a function

    6. Domain 1 2 3 4

    Range 2 6 10 14

    7. Domain 10 20 30 40

    Range 4 5 6 7

    8. Domain 6 7 8 9

    Range 5 5.5 6 6.5

    9. y 5 5x 10. y 5 x 2 7 11. y 5 x 2 2

    12. y 5 8x; independent: number of balloon bunches; dependent: number of balloons; 80 balloons

    13. y 5 10 1 3x; independent: number of hours left in shift; dependent: number of loaves baked; 22 loaves

    Practice Level C

    1. function 2. function 3. not a function

    4. Domain 12 15 18 21

    Range 0 1 2 3

    5. Domain 1 3 5 7

    Range 1 1.5 2 2.5

    6. Domain 10 20 30 40

    Range 1 4 } 3

    5 }

    3 2

    7. y 5 2x 1 3 8. y 5 1 }

    2 x 2 1 9. y 5 x 1 31.5;

    42.5 10. y 5 18 1 6x; 72 novelty items

    11. y 5 8 1 4x; 32 sandwich rings

    Review for Mastery

    1. domain: 2, 5, 7, 8; range: 5, 11, 15, 17

    2. domain: 1, 3, 4, 7; range: 2, 8, 11, 20

    3. Input 0 3 5 7

    Output 0 12 20 28

    range: 0, 12, 20, 28

    4. Input 1 2 3 4

    Output 1 4 7 10

    range: 1, 4, 7, 10

    5. y 5 x 1 11 6. y 5 1 }

    2 x

    Challenge Practice

    1. 0, 1, 2, 3 2. 1, 2, 3, 5 3. 2 4. 5, 2

    5. any value except 22, 1, 2, or 3

    Lesson 1.7

    Practice Level A

    1. horizontal 2. vertical 3. (0, 2), (1, 4), (2, 6), (3, 8) 4. (3, 2), (6, 2), (9, 2), (12, 2) 5. (10, 4), (9, 8), (8, 12), (7, 16) 6. (1, 3), (2, 4), (3, 5), (4, 6); domain: 1, 2, 3, 4; range: 3, 4, 5, 6 7. (2, 1), (4, 3), (6, 5), (8, 7); domain: 2, 4, 6, 8;range: 1, 3, 5, 7 8. (0, 9), (1, 8), (2, 7), (3, 6); domain: 0, 1, 2, 3; range: 9, 8, 7, 6

    9. (1, 5), (2, 7), (3, 9), (4, 11); domain: 1, 2, 3, 4; range: 5, 7, 9, 11 10. (23, 27), (22, 23), (21, 1), (0, 5); domain: 23, 22, 21, 0; range: 27, 23, 1, 5 11. (21, 3), (0, 0), (1, 23), (2 26); domain: 21, 0, 1, 2; range: 3, 0, 23, 26

    12.

    x

    y

    O 1 2 3

    2

    4

    4

    6

    8

    10 13.

    x

    y

    O 2 4 6

    1

    8

    2

    3

    4

    Lesson 1.6, continuedA

    NS

    WE

    RS

    LAHA111FLCRB_BMv1_C01_A01-A07.in4 4 2/2/09 7:23:02 PM

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    A5Algebra 1

    Chapter 1 Resource Book

    14.

    x

    y

    O 2 4 6

    5

    8

    25

    20

    15

    10

    15. C 16. F 17. A 18. D 19. B 20. E

    21.

    h

    d

    2 4 6

    10

    800

    2030405060

    Pay

    (do

    llars

    )

    Hours worked

    22.

    A

    P

    65 70 75

    65

    80 85 90 9500

    707580859095

    Ap

    par

    ent

    tem

    per

    atu

    re (

    F)

    Air temperature (F)

    1008F

    Practice Level B

    1.

    x

    y

    O 1 2 3

    2

    4 5 6 7

    4

    6

    10

    12

    8

    14

    16 2.

    x

    y

    2

    4

    6

    10

    12

    8

    14

    16

    O 2 4 6 8 10 12 14

    3. x 0 1 2 3

    y 2 5 8 11

    4. x 1 2 3 4

    y 3 7 11 15

    5.

    x

    y

    O 1 2 3

    1

    4 5 6

    2

    3

    4

    5

    6 6.

    x

    y

    O 3 6 9

    1

    12 15 18

    2

    3

    4

    5

    6

    7.

    x

    y

    O 1 2 3

    3

    4 5 6

    6

    9

    12

    15

    18 8.

    x

    y

    O 1 2 3

    1

    4 5 6

    2

    3

    4

    5

    6

    9. y 5 x 1 6; domain: 0, 1, 2, 3; range: 6, 7, 8, 9

    10. y 5 4x 2 1; domain: 1, 2, 3, 4; range: 3, 7, 11,15 11. y 5 2x 1 5; domain: 0, 1, 2, 3;

    range: 5, 7, 9, 11 12. y 5 1 }

    3 x;

    domain: 3, 6, 9, 12; range: 1, 2, 3, 4 13. y 5 6x 2 4; domain: 1, 2, 3,

    4; range: 2, 8, 14, 20 14. y 5 1 }

    2 x 1 3;

    domain: 0, 2, 4, 6; range: 3, 4, 5, 6

    15.

    d

    H

    1 2 3 4 50

    0

    202530354045

    Hig

    h t

    emp

    erat

    ure

    (F

    )

    Number of days since Monday

    Answers will vary.

    16. a.

    x

    y

    1 2 3

    40

    4 5 60

    0

    4550556065707580

    Th

    read

    s p

    er in

    ch

    Screw size

    b. The number of threads decrease as the screw size increases. c. Yes. Answers will vary.

    Practice Level C

    1.

    x

    y

    O 2 4 6

    2

    8 10

    4

    6

    10

    8

    2.

    x

    y

    O 0.5

    2

    1.0

    4

    6

    10

    8

    3. x 6 9 12 15

    y 0 2 4 6

    4. x 21 0 1 2

    y 11 8 5 2

    Lesson 1.7, continuedA

    NS

    WE

    RS

    LAHA111FLCRB_BMv1_C01_A01-A07.in5 5 2/2/09 7:23:09 PM

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