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College Freshmen The percentage, y , of college freshmen who smoke cigarettes decreased steadily from the year 2004 to the year 2014 and can be approximated by the linear equation y = − .46 x + 6.32 where x represents the number of years since 2004. Thus, x = 0 represents 2004, x = 1 represents 2005, and so on. ( Source: The American Freshman: National Norms .) a. What interpretation can be given to the y -intercept of the graph of the equation? b. In 2014, approximately what percent of college freshmen smoked? c. In what year did approximately 2.6% of college freshmen smoke?

College Freshmen The percentage, y , of college freshmen who smoke cigarettes decreased steadily from the year 2004 to the year 2014 and can be approximated by the linear equation y = − .46 x + 6.32 where x represents the number of years since 2004. Thus, x = 0 represents 2004, x = 1 represents 2005, and so on. ( Source: The American Freshman: National Norms .) a. What interpretation can be given to the y -intercept of the graph of the equation? b. In 2014, approximately what percent of college freshmen smoked? c. In what year did approximately 2.6% of college freshmen smoke?

Solution Summary: The author explains how the y-intercept of the graph shows the percentage of college freshmen who smoke cigarette in the year 2004.

Pearson eText for Finite Mathematics & Its Applications -- Instant Access (Pearson+)

Pearson eText for Finite Mathematics & Its Applications -- Instant Access (Pearson+)

12th Edition

ISBN: 9780137442966

Author: Larry Goldstein, David Schneider

Publisher: PEARSON+

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Textbook Question

Chapter 1.1, Problem 46E

College Freshmen The percentage, y, of college freshmen who smoke cigarettes decreased steadily from the year 2004 to the year 2014 and can be approximated by the linear equation y = − .46 x + 6.32 where x represents the number of years since 2004. Thus, x = 0 represents 2004, x = 1 represents 2005, and so on. (Source: The American Freshman: National Norms.)

a. What interpretation can be given to the y-intercept of the graph of the equation?

b. In 2014, approximately what percent of college freshmen smoked?

c. In what year did approximately 2.6% of college freshmen smoke?

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Chapter 1.1, Problem 45E

Chapter 1.1, Problem 47E

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Chapter 1 Solutions

Pearson eText for Finite Mathematics & Its Applications -- Instant Access (Pearson+)

Ch. 1.1 - Plot the point (500,200).Ch. 1.1 - 2. Is the point on the graph of the linear...Ch. 1.1 - In Exercises 1–8, plot the given point. 1. Ch. 1.1 - In Exercises 18, plot the given point. (1,4)Ch. 1.1 - In Exercises 1–8, plot the given point. 3. Ch. 1.1 - In Exercises 18, plot the given point. (2,0)Ch. 1.1 - In Exercises 18, plot the given point. (2,1)Ch. 1.1 - In Exercises 18, plot the given point. (1,52)Ch. 1.1 - In Exercises 1–8, plot the given point. 7. Ch. 1.1 - In Exercises 1–8, plot the given point. 8.

Ch. 1.1 - What are the coordinates of the point Q in Fig. 7?Ch. 1.1 - What are the coordinates of the point P in Fig. 7?Ch. 1.1 - In Exercises 11–14, determine whether the point is...Ch. 1.1 - In Exercises 1114, determine whether the point is...Ch. 1.1 - In Exercises 11–14, determine whether the point is...Ch. 1.1 - In Exercises 1114, determine whether the point is...Ch. 1.1 - In Exercises 15–18, each linear equation is in the...Ch. 1.1 - In Exercises 1518, each linear equation is in the...Ch. 1.1 - In Exercises 1518, each linear equation is in the...Ch. 1.1 - In Exercises 1518, each linear equation is in the...Ch. 1.1 - In Exercises 19–22, write each linear equation in...Ch. 1.1 - In Exercises 1922, write each linear equation in...Ch. 1.1 - In Exercises 1922, write each linear equation in...Ch. 1.1 - In Exercises 19–22, write each linear equation in...Ch. 1.1 - In Exercises 2326, find the x-intercept and the...Ch. 1.1 - In Exercises 2326, find the x-intercept and the...Ch. 1.1 - In Exercises 2326, find the x-intercept and the...Ch. 1.1 - In Exercises 2326, find the x-intercept and the...Ch. 1.1 - In Exercises 2734, graph the given linear...Ch. 1.1 - In Exercises 2734, graph the given linear...Ch. 1.1 - In Exercises 27–34, graph the given linear...Ch. 1.1 - In Exercises 2734, graph the given linear...Ch. 1.1 - In Exercises 27–34, graph the given linear...Ch. 1.1 - In Exercises 2734, graph the given linear...Ch. 1.1 - In Exercises 27–34, graph the given linear...Ch. 1.1 - In Exercises 2734, graph the given linear...Ch. 1.1 - Which of the following equations describe the same...Ch. 1.1 - Which of the following equations describe the same...Ch. 1.1 - 37. Each of the lines in Fig. 8 is the graph of...Ch. 1.1 - 38. Which of the following equations is graphed in...Ch. 1.1 - 39. Heating Water The temperature of water in a...Ch. 1.1 - Life Expectancy The average life expectancy y of a...Ch. 1.1 - 41. Cigarette Consumption The worldwide...Ch. 1.1 - 42. Ecotourism Income In a certain developing...Ch. 1.1 - Insurance Rates Yearly car insurance rates have...Ch. 1.1 - Simple Interest If $1000 is deposited at 3% simple...Ch. 1.1 - 45. College Freshmen The percentage, y, of college...Ch. 1.1 - College Freshmen The percentage, y, of college...Ch. 1.1 - College Tuition Average tuition (including room...Ch. 1.1 - 48. Bachelor’s Degrees The number of bachelor’s...Ch. 1.1 - 49. Find an equation of the line having...Ch. 1.1 - Find an equation of the line having x-intercept...Ch. 1.1 - Find an equation of the line having y-intercept...Ch. 1.1 - Find an equation of the line having x-intercept...Ch. 1.1 - 53. What is the equation of the x-axis? Ch. 1.1 - 54. Can a line other than the x-axis have more...Ch. 1.1 - 55. 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