he table shows the number of cellular phone subscribers (In millions) in the United States for selected years. f Year 1990 1993 1996 1999 2002 2005 86 141 206 Number 5 16 44 (a) Use the regression capabilities of a graphing utility to find a mathematical model of the form y at + bt + c for the data. In the model, y rem (Round your coefficients to three decimal places.) y%3D (b) Use a graphing utility to plot the data and graph the model. 350 350 300 300 250 250 200 200 150 150 100 100 50 50 468 10 12 14 16 18 20 8 10 12 14 16 18 20 350 350 300 300 250 250 200 y 200 150 150 100 100 50 50 1995 2000 2005 2010 01990 1996 2000 2005 2010 (c) Use the model to predict the number of cellular phone subscribers in the United States in the vear 2011 Need Help? Resd Watch

he table shows the number of cellular phone subscribers (In millions) in the United States for selected years. f Year 1990 1993 1996 1999 2002 2005 86 141 206 Number 5 16 44 (a) Use the regression capabilities of a graphing utility to find a mathematical model of the form y at + bt + c for the data. In the model, y rem (Round your coefficients to three decimal places.) y%3D (b) Use a graphing utility to plot the data and graph the model. 350 350 300 300 250 250 200 200 150 150 100 100 50 50 468 10 12 14 16 18 20 8 10 12 14 16 18 20 350 350 300 300 250 250 200 y 200 150 150 100 100 50 50 1995 2000 2005 2010 01990 1996 2000 2005 2010 (c) Use the model to predict the number of cellular phone subscribers in the United States in the vear 2011 Need Help? Resd Watch

Calculus: Early Transcendentals

8th Edition

ISBN:9781285741550

Author:James Stewart

Publisher:James Stewart

Chapter1: Functions And Models

Section: Chapter Questions

Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...

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Concept explainers

Limits

When it comes to calculus, limits are considered to be a very important topic of discussion. The main importance of limit lies in expressing the value of a function as it gets closer to a certain value. Also, limits can help you to understand other topics, such as continuity and differentiability better. In a broader sense, every calculus notion is a limit. Other branches of calculus have also been derived from limits.

Question

The table shows the number of cellular phone subscribers (in millions) in the United States for selected vears,
Year
1990 1993 1996 1999 2002 2005
(a) Use the regression capabilities of a graphing utility to find a mathematical model of the form y = at + bt + c for the data. In the model, y rep
(Round your coefficients to three decimal places.)
44
86
141 206
16
Number 5
y =
(b) Use a graphing utility to plot the data and graph the model.
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350
300
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200
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150
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1996
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1995
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(c) Use the model to predict the number of cellular phone subscribers in the United States in the vear 2011. (Round your answer to three decimal places.)
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