lesson practice a 1.7 for use with pages 42 index the table shows the apparent a p 65 70 75 65 80 85...
TRANSCRIPT
Name ——————————————————————— Date ————————————Co
pyrig
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Hol
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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
LE
SS
ON
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
pare
nt
tem
pera
ture
(°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 105°F 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
LE
SS
ON
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
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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
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