25. 26. 4 2 2 4 –2 –6 –4 –2 –4 –6 x y 6 2 –4 –2 2 x 4 4 –2 y Find the requested information for the given relation. (See Objective 3.) 27. Find the output value that corresponds to the input value of -1 for the relation y = x 2 - 2x. 28. Find the output value that corresponds to the input value of 1 3 for the relation y = 3x - 9x 2. 29. Find the input value that corresponds to the output value of -4 for the relation 4x - 3y = 20. 30. Find the input value that corresponds to the output value of 7 for the relation 6x + 3y=-9. 31. Find the output value that corresponds to the input value of 0 for the relation whose graph is shown. 2 2 4 4 –2 –4 –2 –4 x y 32. Find the input value that corresponds to the output value of 2 for the relation whose graph is shown. 2 2 4 4 –2 –4 –2 –4 x y SECTION 3.3 Determine if each relation is a function. (See Objective 1.) 33. {(-6, 0), (-6, -7), (-6, 1), (-6, 4)} 34. {(5, -3), (1, 2), (3, 4), (6, -2)} 35. x = 4 - 3y 36. x = 2y + 5 37. William and his friends share their favorite gamine consoles as shown in the mapping. 360 t t 3 m 38. David and his friends share their favorite sport programs as shown in the mapping. c t t ff m c t f 39. 3 –2 4 5 6 2 40. –4 0 1 7 –3 9 15 Use the vertical line test to determine if each relation is a function. (See Objective 2.) 41. 42. 6 2 –4 –2 2 x 4 4 –2 y 2 2 4 4 6 –2 –2 –4 x y 204 Chapter 3 Graphs, Relations, and Functions
hendricks_intermediate_algebra_1e_ch1_3
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