Answered: The birth rate in a certain country in…

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter1: Equations And Graphs

Section1.3: Lines

Problem 92E

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The birth rate in a certain country in 1993 was 14.9 births per thousand population. In 2003, the birth rate was 14.28 births per thousand.

a. Let x represent years after

1993

and y represent the birth rate. Assume that the relationship between x and y is linear over this period. Write a linear equation that relates y in terms of x.

b. Use the linear equation from part (a) to estimate the birth rate in this country in the year

2023.

The birth rate in a certain country in 1993 was 14.9 births per thousand population. In 2003, the birth rate was
14.28 births per thousand.
a. Let x represent years after 1993 and y represent the birth rate. Assume that the relationship between x and
y is linear over this period. Write a linear equation that relates y in terms of x.
b. Use the linear equation from part (a) to estimate the birth rate in this country in the year 2023.
a. Determine the equation describing the linear relationship.
y=
(Simplify your answer. Type your answer in slope-intercept form. Use integers or decimals for any numbers in
the expression.)
b. Use the equation from part (a) to determine the bir
rate in the year 2023
births per thousand population.
(Simplify your answer. Type an integer or a decimal.)

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