Download College algebra in context : with applications for the by Ronald J. Harshbarger, Lisa S. Yocco PDF

By Ronald J. Harshbarger, Lisa S. Yocco

ISBN-10: 0321756266

ISBN-13: 9780321756268

For classes in collage algebra.

Mathematics from lecture room to Career


College Algebra in Context, Fifth Edition is perfect for college kids majoring in enterprise, social sciences, and lifestyles sciences. The authors use modeling, purposes, and real-data difficulties to strengthen abilities, giving scholars the perform they should turn into adept challenge solvers of their destiny classes and careers. This variation bargains new sections on conics and the binomial theorem.


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Additional info for College algebra in context : with applications for the managerial, life, and social sciences

Sample text

Y = 10 - 3x 2 c. 1 14. Does the table below define y as a function of x? If so, give the domain and range of f . If not, state why not. 7 x Ϫ3 2 0 3 2 y 12 Ϫ3 5 16 4 Ϫ4 8. For each of the functions y = f (x) described below, find f ( -1). a. b. 7 x ƒ(x) Ϫ3 12 Ϫ1 Ϫ8 0 5 3 16 Determine if each graph in Exercises 15–18 indicates that y is a function of x. 15. 7 Ϫ4 c. f (x) = x 2 + 3x + 8 16. y In Exercises 9 and 10, refer to the graph of the function y = f (x) to complete the table. y 9. x 10 8 6 4 2 y 0 Ϫ2 Ϫ5 Ϫ4 Ϫ3 Ϫ2 Ϫ1Ϫ2 0 1 2 3 4 5 x 17.

If x represents the number of years after 1990, we must subtract 1990 from each year in the original table to obtain x. The enrollment in the original table is given in thousands, and because one million is 1000 times one thousand, we must divide each number by 1000 to obtain y. 18. 26 c. Because x represents the number of years after 1990, we subtract 1998 Ϫ 1990 to obtain an x-value of 8. 428 million, or (multiplying by 1000) 14,428 thousand. Note that this is the same result as in part (a). d.

S. farms (in millions) for selected years t. Farms a. S. farms a function of the year? a. What is f (2005)? b. What is f (1940) if N = f (t)? b. Interpret the result from (a). c. 4? c. What is the maximum number of firearm crimes during this period of time? In what year did it occur? d. 2. 2 1990 2000 2009 2005 2 1 1940 1950 1960 1970 1980 Year (Source: From 2011 World Almanac. 1 Functions and Models 57. S. girls ages 15 to 19 was the lowest since the government began tracking the statistic in 1940.

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College algebra in context : with applications for the managerial, life, and social sciences by Ronald J. Harshbarger, Lisa S. Yocco

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