The total projected worldwide digital music revenues R, in millions of dollars, for the years 2012 through 2017 can be estimated by the functionR(x) = 28.6x2 + 300x + 4843where x is the number of years after 2012.(a) Find R(0), R(3), and R(5) and explain what each value represents.(b) Find r(x) = R(x - 2).(c) Find r(2), r(5), and r(7) and explain what each value represents.(d) In the model r = r1x2, what does x represent?(e) Would there be an advantage in using the model r when estimating the projected revenues for a given year instead of the model R?
The total projected worldwide digital music revenues R, in millions of dollars, for the years 2012 through 2017 can be estimated by the functionR(x) = 28.6x2 + 300x + 4843where x is the number of years after 2012.(a) Find R(0), R(3), and R(5) and explain what each value represents.(b) Find r(x) = R(x - 2).(c) Find r(2), r(5), and r(7) and explain what each value represents.(d) In the model r = r1x2, what does x represent?(e) Would there be an advantage in using the model r when estimating the projected revenues for a given year instead of the model R?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.6: Solving Quadratic Equations By Using The Quadratic Formula
Problem 64PFA
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The total projected worldwide digital music revenues R, in millions of dollars, for the years 2012 through 2017 can be estimated by the function
R(x) = 28.6x2 + 300x + 4843
where x is the number of years after 2012.
(a) Find R(0), R(3), and R(5) and explain what each value represents.
(b) Find r(x) = R(x - 2).
(c) Find r(2), r(5), and r(7) and explain what each value represents.
(d) In the model r = r1x2, what does x represent?
(e) Would there be an advantage in using the model r when estimating the projected revenues for a given year instead of the model R?
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