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ASK YOUR TEACHER The most expensive rates (In dollars per minute) for a 2-minute telephone call using a long-distance carrler are listed in the table. Long-Distance Telephone Rates Rate, P (dollars per minute) Year 1982 1.31 1984 1.22 1985 1.13 1986 1.02 1987 0.81 1988 0.75 1989 0.64 1990 0.66 1995 0.38 2000 0.18 (a) Find the function for the quadratic model that gives the most expensive rates in dollars per minute for a 2-minute telephone call using a long-distance carrier, where x is the number of years since 1980, with data from 2sxs 20. (Round all numerical values to three decimal places.) p(x) - dollars per minute (b) Calculate the average of the most expensive rates from 1982 through 2000. (Round your answer to three decimal places.) $ 45 v per minute (c) Calculate the average rate of change of the most expensive rates from 1982 through 2000. (Round your answer to three decimal places.) $-0 063 V per minute per year Need Help? Read it

ASK YOUR TEACHER The most expensive rates (In dollars per minute) for a 2-minute telephone call using a long-distance carrler are listed in the table. Long-Distance Telephone Rates Rate, P (dollars per minute) Year 1982 1.31 1984 1.22 1985 1.13 1986 1.02 1987 0.81 1988 0.75 1989 0.64 1990 0.66 1995 0.38 2000 0.18 (a) Find the function for the quadratic model that gives the most expensive rates in dollars per minute for a 2-minute telephone call using a long-distance carrier, where x is the number of years since 1980, with data from 2sxs 20. (Round all numerical values to three decimal places.) p(x) - dollars per minute (b) Calculate the average of the most expensive rates from 1982 through 2000. (Round your answer to three decimal places.) $ 45 v per minute (c) Calculate the average rate of change of the most expensive rates from 1982 through 2000. (Round your answer to three decimal places.) $-0 063 V per minute per year Need Help? Read it

Calculus: Early Transcendentals
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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MY NOTES ASK YOUR TEACHER The most expensive rates (in dollars per minute) for a 2-minute telephone call using a long-distance carrier are listed in the table. Long-Distance Telephone Rates Rate, p (dollars per minute) Year 1982 1.31 1984 1.22 1985 1.13 1986 1.02 1987 0.81 1988 0.75 1989 0.64 1990 0.66 1995 0.38 2000 0.18 (a) Find the function for the quadratic model that gives the most expensive rates in dollars per minute for a 2-minute telephone call using a long-distance carrier, where x is the number of years since 1980, with data from 2 < x < 20. (Round all numerical values to three decimal places.) p(x) = dollars per minute (b) Calculate the average of the most expensive rates from 1982 through 2000. (Round your answer to three decimal places.) $45 V per minute (c) Calculate the average rate of change of the most expensive rates from 1982 through 2000. (Round your answer to three decimal places.) $ -0.063 per minute per year Need Help? Read It Submit Answer 9:14 PM 69°F Clear P Type here to search 25 9/26/2021 BANG & OLUS ins
Transcribed Image Text:MY NOTES ASK YOUR TEACHER The most expensive rates (in dollars per minute) for a 2-minute telephone call using a long-distance carrier are listed in the table. Long-Distance Telephone Rates Rate, p (dollars per minute) Year 1982 1.31 1984 1.22 1985 1.13 1986 1.02 1987 0.81 1988 0.75 1989 0.64 1990 0.66 1995 0.38 2000 0.18 (a) Find the function for the quadratic model that gives the most expensive rates in dollars per minute for a 2-minute telephone call using a long-distance carrier, where x is the number of years since 1980, with data from 2 < x < 20. (Round all numerical values to three decimal places.) p(x) = dollars per minute (b) Calculate the average of the most expensive rates from 1982 through 2000. (Round your answer to three decimal places.) $45 V per minute (c) Calculate the average rate of change of the most expensive rates from 1982 through 2000. (Round your answer to three decimal places.) $ -0.063 per minute per year Need Help? Read It Submit Answer 9:14 PM 69°F Clear P Type here to search 25 9/26/2021 BANG & OLUS ins
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