By Woerle K.

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Y ϭ x3 ϩ 2 50. y ϭ x3 Ϫ 4x 51. y ϭ xΊx ϩ 5 52. y ϭ Ί25 Ϫ x2 53. x ϭ y3 54. x ϭ y 2 Ϫ 4 Խ 13. y ϭ Խ 3 x ԽԽ 14. y ϭ 1 xϩ2 In Exercises 15 and 16, describe the viewing window that yields the figure. 15. y ϭ x3 ϩ 4x 2 Ϫ 3 ԽԽ Խ 46. y ϭ x 2 ϩ 3 2 Խ 16. y ϭ x ϩ x Ϫ 16 55. y ϭ 8 x 56. y ϭ ԽԽ 57. y ϭ 6 Ϫ x 10 x2 ϩ 1 Խ Խ 58. y ϭ 6 Ϫ x In Exercises 59–62, use a graphing utility to graph the equation. Identify any intercepts and test for symmetry. In Exercises 17 and 18, use a graphing utility to graph the equation.

Y ϭ 6 Ϫ x In Exercises 59–62, use a graphing utility to graph the equation. Identify any intercepts and test for symmetry. In Exercises 17 and 18, use a graphing utility to graph the equation. Move the cursor along the curve to approximate the unknown coordinate of each solution point accurate to two decimal places. 17. y ϭ Ί5 Ϫ x (a) ͑2, y͒ (b) ͑x, 3͒ 18. 5, y͒ (b) ͑x, Ϫ4͒ 59. y 2 Ϫ x ϭ 9 60. x 2 ϩ 4y 2 ϭ 4 61. x ϩ 3y 2 ϭ 6 62. 3x Ϫ 4y 2 ϭ 8 In Exercises 63–70, find the points of intersection of the graphs of the equations.

Point In Exercises 29–34, find an equation of the line that passes through the point and has the given slope. Sketch the line. Point Slope Point Slope 29. ͑0, 3͒ m ϭ 34 30. ͑Ϫ5, Ϫ2͒ m is undefined. 31. ͑0, 0͒ mϭ 2 3 32. ͑0, 4͒ mϭ0 33. ͑3, Ϫ2͒ mϭ3 34. ͑Ϫ2, 4͒ m ϭ Ϫ 35 15. ͑6, 2͒ mϭ0 16. ͑Ϫ4, 3͒ m is undefined. 17. ͑1, 7͒ m ϭ Ϫ3 18. ͑Ϫ2, Ϫ2͒ mϭ2 Slope Copyright 2010 Cengage Learning, Inc. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. 2 In Exercises 35– 44, find an equation of the line that passes through the points, and sketch the line.

### 200 Aufgaben aus der Trigonometrie mit Loesungen by Woerle K.

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