4. (22, 16), (21, 8), (0, 4), (1, 2), (2, 1) 20
5. (23, 4), (22, 0), (21, 22), (0, 22), (1, 0)
exponential
y
quadratic
y 3
Lesson 9-‐4 HW Answers Old Workbook Pg. 112-‐113/ #6 – 15, 18abc (13 ques?ons) 12
1
4
23
1
21 24
3 x
6. (24, 17), (22, 11), (0, 5), (2, 21), (4, 27)
x
7. (29, 21), (26, 22), (23, 23), (0, 24), (3, 25)
linear
y
1
21 21
1
12
29
linear
y 3
23 21
x
4 26
6 x
22 24
Name ———————————————————————
2Practice 1 2
1
1 1 8.LESSON 22, }9 , 21, }3 , (0, 1), (1,continued 3), (2, 9) 10.8 For use with pages 706–713
Date ————————————
9. (2, 5), (3, 2), (4, 1), (5, 2), (6, 5)
exponential
y
25
quadratic
y
10 5 Name ——————————————————————— Tell whether the table of values represents a linear function, Date ————————————
an exponential 6 function, or a quadratic function. 10.
112
LESSON
10.8 x
Practice
continued exponential 11. 0For2 use 1 with 2 pages 3 706–713 4
3 1x
x 23 21 5 1 25 3 125 y 1 y 625 represents a linear 22the table of values Tell whether an exponential function, or a quadratic function. 12. 13. quadratic 1 2 3 10. x 21 0 exponential 11. x x 0 1 x 2 3 4 y y 4 1 0 1 4 Algebra y 1 y 1 5 25 125 625 Chapter 10 Resource Book exponential 14. 15. 1 2 12. x 22 21 0 13. x quadratic x 21 0 1 2 x 3 1 1 y } } y 32 8 2 y y 4 1 0 12 48
22 1210 3
21
0
x 275 24
function,
210 25 22 21 4 3.5 210 27
0
1
2
21
2
5
10 0 1 2 3 2.5 2 24 21 2 0 10 23 2
linear
linear linear
quadratic linear
24 23 22 210 25 0 23 0 1 4 3.5 3
21 5 0 2.5
xx
23 24 22 23 21 22
exponential quadratic 021 1 0
yy
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22 22 21 21 1 32
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17. 15.
90
31
16. Use the graph shown. 17. linear 18. x 22 21 0 1 2 x 23 22 21 a. Which function does the graph represent, an exponential function
1 1 0 }3 23
0
1
y or a1quadratic 3 5 7 9Explain your reasoning. exponential; y 27 9The graph 3 1 function?
1 } 224 3
rises quickly.
b. Make a table of values for the points on the graph. Then use
exponential y (4, 256)
160
differences or ratios to check your answer in part (a).
18. Use the graph shown. c. Write an equation for the function that the table of values from a. Which function does the graph represent, an exponential function x
96
y
(3, 64)
(4, 256) part (b) represents. y 5 4 exponential; The graph or a quadratic function? Explain your reasoning. 32 224 rises quickly. b. (2, 16) x 0 1 2 3 4 b. Make a table of values for the points on the graph. Then use 5 x (0, 1) 1 (1, 4) 160 differences or ratios to check your answer in part (a). y 1 4 16 64 256 c. Write an equation for the function that the table of values from 96 (3, 64) 19. Pleasure Boats The graph total amount of sales part (b) represents. y 5shows 4x Pleasure Boats 32 (in millions of dollars) of pleasure boats in the United States b. (2, 16) y x 0 1990–2002. 1 2 3Tell whether 4 16,000(0, 1) for the period the data should be 1 (1, 4) 5 x 14,000 modeled by a linear function, an exponential function, or dollars)
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Copyright © Holt McDougal. All rights reserved.
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