228 Chapter 2 Linear Equations in Two Variables and Functions b. Find an equation for the line through the points (50, 7) and (100, 20). c. Based on the equation, what would be the result of the football game if the star running back did not play? Section 2.5 For Exercises 35–38, find the domain and range. 35. 36. 5 4 3 2 1 2 1 1 37. 38. 70 (3, 60) 60 (9, 60) y 10 42 5 4 3 2 1 2 1 1 Section 2.6 39. Sketch a relation that is not a function. (Answers may vary.) y x (0, 0) (2, 1) (1, 1) (3, 2) (3, ) 52 543 3 4 5 2 3 4 5 ea1 3 , 10b, a6, 1 2 b, a1 4 , 4b, a7, 2 5 bf 40. Sketch a relation that is a function. (Answers 5 4 21 y 1 For Exercises 41–46: a. Determine whether the relation defines y as a function of x. b. Find the domain. c. Find the range. 41. 42. 43. 44. 45. 46. 5 4 3 2 1 2 1 1 511, 32, 12, 32, 13, 32, 14, 326 510, 22, 10, 32, 14, 42, 10, 526 x y 4 9 2 x y 9 10 11 12 6 7 8 9 2 3 3 5 4 y 5 43 21 1 2 3 4 5 1 2 3 4 5 x 3 2 1 54 3 1 2 3 4 5 2 3 4 5 x 3 2 1 1086 2 4 6 8 10 10 20 30 x 50 40 30 20 y x 543 1 2 3 4 5 2 3 4 5 y x 543 1 2 3 4 5 2 3 4 5 y x (1.25, 0.35) 5 4 3 2 1 2 1 543 1 2 3 4 5 1 2 3 4 5 may vary.)
miller_intermediate_algebra_4e_ch1_3
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