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190 Chapter 2 Linear Equations in Two Variables and Functions 23. 24. 25. y 26. x 543 5 4 1 2 3 4 5 2 3 2 1 1 1 2 3 4 5 (0, 1.3) y x 5 4 3 2 1 543 1 2 3 4 5 21 1 2 3 4 5 y x 5 4 3 2 1 543 1 2 3 4 5 21 1 2 3 4 5 27. 28. y 29. 30. x 5 4 3 2 1 21 543 1 2 3 4 5 1 2 3 4 5 y x 5 4 3 2 1 21 543 1 2 3 4 5 1 2 3 4 5 y x 543 5 4 1 2 3 4 5 2 3 2 1 1 1 2 3 4 5 y x 5 4 3 2 1 21 543 1 2 3 4 5 1 2 3 4 5 y x 5 4 3 2 1 21 543 1 2 3 4 5 1 2 3 4 5 Concept 3: Applications Involving Relations 31. The table gives a relation between the month of the year and the average precipitation for that month for Miami, Florida. (See Example 5.) a. What is the range element corresponding to April? b. What is the range element corresponding to June? c. Which element in the domain corresponds to the least value in the range? d. Complete the ordered pair: ( , 2.66) e. Complete the ordered pair: (Sept., ) f. What is the domain of this relation? 32. The table gives a relation between a person’s age and the person’s maximum recommended heart rate. a. What is the domain? b. What is the range? c. The range element 200 corresponds to what element in the domain? d. Complete the ordered pair: (50, ) e. Complete the ordered pair: ( , 190) Month Precipitation x (in.) y Jan. 2.01 Feb. 2.08 Mar. 2.39 Apr. 2.85 May 6.21 June 9.33 Month Precipitation x (in.) y July 5.70 Aug. 7.58 Sept. 7.63 Oct. 5.64 Nov. 2.66 Dec. 1.83 Source: U.S. National Oceanic and Atmospheric Administration Age Maximum Recommended Heart (years) Rate (Beats per Minute) x y 20 200 30 190 40 180 50 170 60 160 33. The population of Canada, y (in millions), can be approximated by the relation where x represents the number of years since 2000. a. Approximate the population of Canada in the year 2006. b. In what year did the population of Canada reach approximately 32,752,000? y 0.146x 31,


miller_intermediate_algebra_4e_ch1_3
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