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16. The opening price of Microsoft Corp. stock in the beginning of January of the specified year is given in the table. Express this relation as a set of ordered pairs. (Source: http://www.dailyfinance.com) Year 2007 2008 2009 2010 2011 Price (in dollars) 30.19 32.20 17.10 28.18 27.75 17. A popular coffee shop charges $3.10 for a tall iced mocha. Express the relation between the number of iced mochas sold and the revenue the coffee shop earns as an equation. 18. A cookie store in the mall charges $2.50 for a large double-chocolate chip cookie. Express the relation between the number of double-chocolate chip cookies sold and the revenue the store earns as an equation. 19. A New York street vendor charges $1.50 for an all-beef hotdog. Express the relation between the number of hotdogs sold and the revenue the street vendor earns as an equation. 20. A Philadelphia street vendor charges $2.00 for a salted pretzel with mustard. Express the relation between the number of pretzels sold and the revenue the street vendor earns as an equation. Find the domain and range of each relation whose graph is given. (See Objective 2.) 21. 22. 2 y 2 4 4 –2 –4 –2 –4 x 4 4 8 8 –4 –8 –4 –8 x y 23. 24. 2 y 2 4 4 6 –2 –2 –4 x 6 2 –6 –4 –2 2 x 4 4 –2 –4 y 25. 26. 2 y 2 4 –2 –8 –6 –4 –2 –4 x 2 2 4 4 –2 –4 –2 –4 x y 27. 28. 2 y 2 4 4 6 –2 –2 –4 x 12 4 4 8 8 –4 –8 –4 –8 x y Find the indicated value for each relation. (See Objective 3.) 29. Find the output value that corresponds to the input value of -1 for the relation {(-2, -1), (-1, 3), (0, 5), (6, -4)}. 30. Find the output value that corresponds to the input value of 5 for the relation {(0, 10), (2, -16), (5, 13), (-16, 5)}. 31. Find the output value that corresponds to the input value of 3 for the relation b (-4, -1), a- 1 2 , 2b, (3, 4), (5, 2) r . 32. Find the output value that corresponds to the input value of - 3 4 for the relation b a- 3 4 , 7b , (0, -6), a1 2 , - 3 4 b , (4, -10) r . 33. Find the input value that corresponds to the output value of 9 for the relation y2 = x. 34. Find the input value that corresponds to the output value of 1 for the relation y2 = x. 35. Find the input value that corresponds to the output value of 3 for the relation 2x + y = 5. 36. Find the input value that corresponds to the output value of -2 for the relation 3x + y = 7. 37. Find the input value that corresponds to the output value of 6 for the relation y = |x - 5|. 38. Find the input value that corresponds to the output value of 1 for the relation y = |x - 10|. 39. Find the output value that corresponds to the input value of 3 for the relation {(-11, 7), (-9, 12), (3, -5), (0, -10), (3, 14)}. 174 Chapter 3 Graphs, Relations, and Functions


hendricks_intermediate_algebra_1e_ch1_3
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