19. 20. 2 2 4 4 –2 –4 –2 –4 x y 2 2 4 4 –2 –4 –2 –4 x y 21. 22. 6 2 2 4 4 –2 –4 –2 –4 x y 6 2 2 4 4 6 –2 –2 –4 x y 23. 24. 2 2 4 –2 –4 –2 –4 –6 x y 2 2 4 4 –2 –4 –2 –4 x y 25. 26. 6 2 2 4 4 6 –2 –2 –4 x y 2 2 4 4 –2 –4 –2 –4 x y 27. 28. 2 2 4 4 –2 –4 –2 –4 x y 2 2 4 4 –2 –4 –2 –4 x y 29. 30. 2 2 4 4 –2 –4 –2 –4 x y 6 2 –2 –1 1 x 4 2 –2 y 31. 32. 8 6 2 1 4 2 3 4 x y 8 6 2 –6 –4 –2 x 2 4 –2 y Find the domain of each function. (See Objective 3.) 33. f (x) = 4x -7 34. f (x) = 2x + 1 35. f (x) = 3 5 x +2 36. f (x)=- 9 2 x - 5 37. g(x) = 1 x 38. g(x) = 2 x 39. h(x) = x x + 5 40. h(x) = x x - 7 41. f (x) = 1x + 6 42. f (x) = 15x + 10 43. f (x) = 16 - 8x 44. f (x) = 15 - 3x Find the domain of each function described. (See Objective 4.) 45. A(x) 5 x(8 2 x) 46. A(x) 5 x(2 2 x) x x 8 – 2x 2 – x 47. A(x) 5 (4 2 2x)(5 2 x) 48. A(x) 5 (9 2 3x)(7 2 x) 4 – 2x 5 – x 9 – 3x 7 – x 49. A(x) = 1 2 x(18 - 2x) 50. A(x) = 1 2 x(10 - 2x) x x 18 – 2x 10 – 2x 198 Chapter 3 Graphs, Relations, and Functions
hendricks_intermediate_algebra_1e_ch1_3
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