In this exercise, let x represent the number of years after 1985 and let y represent the percentage of Americans in one of the groups shown who used cigarettes. a. Use the data points (0, 38) and (20, 27.3) to find the slope- intercept equation of the line that models the percentage of African Americans who used cigarettes, y,x years after 1985. Round the value of the slope m to two decimal places. b. Use the data points (0, 40) and (20, 24.2) to find the slope-intercept equation of the line that models the percentage of Hispanics who used cigarettes, y, x years after 1985. c. Use the models from parts (a) and (b) to find the year during which cigarette use was the same for African Americans and Hispanics. What percentage of each group used cigarettes during that year?

In this exercise, let x represent the number of years after 1985 and let y represent the percentage of Americans in one of the groups shown who used cigarettes. a. Use the data points (0, 38) and (20, 27.3) to find the slope- intercept equation of the line that models the percentage of African Americans who used cigarettes, y,x years after 1985. Round the value of the slope m to two decimal places. b. Use the data points (0, 40) and (20, 24.2) to find the slope-intercept equation of the line that models the percentage of Hispanics who used cigarettes, y, x years after 1985. c. Use the models from parts (a) and (b) to find the year during which cigarette use was the same for African Americans and Hispanics. What percentage of each group used cigarettes during that year?

Algebra and Trigonometry (6th Edition)

6th Edition

ISBN:9780134463216

Author:Robert F. Blitzer

Publisher:Robert F. Blitzer

ChapterP: Prerequisites: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...

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Question

In this exercise, let x represent the number of years after
1985 and let y represent the percentage of Americans in one
of the groups shown who used cigarettes.
a. Use the data points (0, 38) and (20, 27.3) to find the slope-
intercept equation of the line that models the percentage
of African Americans who used cigarettes, y,x years after
1985. Round the value of the slope m to two decimal
places.
b. Use the data points (0, 40) and (20, 24.2) to find the
slope-intercept equation of the line that models the
percentage of Hispanics who used cigarettes, y, x years
after 1985.
c. Use the models from parts (a) and (b) to find the year
during which cigarette use was the same for African
Americans and Hispanics. What percentage of each group
used cigarettes during that year?

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