Lesson Solving Two Equations and Two Unknowns by Rapalje

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This Lesson (Solving Two Equations and Two Unknowns by Rapalje) was created by by rapaljer(4601) About Me : View Source, Show
About rapaljer: Retired Professor of Mathematics from Seminole State College of Florida after 36 years.

This text was imported from http://www2.seminolestate.edu/rrapalje/BasicAlgebra/Basic%20One%20Step%20Ch%204/4.07%20Systems%20of%20Eq/4.07%20Systems%20of%20Eq.htm by its author.

4.07   Systems of Equations (2x2)

           from Basic Algebra: One Step at a Time © 2002-2011

P. 349-368

Dr. Robert J. Rapalje

Seminole State College of Florida

 

ANSWERS TO ALL EXERCISES ARE INCLUDED AT THE END OF THIS PAGE

 

To see selected solutions in Living C O L O R  click here!

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ANSWERS 4.07

p.351 - 368:

             1. (2,0);  2. (3,-2);  3. (1,2);  4. (-3,-2);  5. No Sol--Parallel Lines;  6. Same line;  

 7. Same line; 8. No Sol--Parallel Lines; 9. (-2,1); 10. (-2,3); 11. (4,-3); 12. (4,5);

13. (2,2); 14. (2,3); 15. Same line; 16. No Sol--Parallel Lines; 17. (2,-8); 18. (3,-2);

19. (2,3); 20. (-2,1); 21. (5,6); 22. (6,1); 23. (-4,-3); 24. (-4,2); 25. (4,2); 26. (5,3);

27. (15,-7); 28. (4,1); 29. (2,2); 30. (14,-2); 31. (6,-8); 32. (-3,2); 33. (-26,16); 34. (‑2,‑1);

35. (20,24); 36. (-7,12);  37. No Sol--Parallel;  38. Same line;  39. (‑7,0);

40. No Sol--Parallel; 41. (3,2); 42. (-2,-11); 43. (3,6); 44. (3,1); 45. (5,5); 46. (11,5);  

47. (-15,-8);  48. (5,-1);  49. (-1,-5);  50. (7,3);  51. (3,-2);  52. (16,18);  53. (-5,3);

54. (‑6,‑2); 55. (-2,-5); 56. (2,11); 57. Same line; 58. No Sol--Parallel;

59. (2,-3); 60. (-10,-8); 61. (4,-8); 62. Same line; 63. No Sol--Parallel; 64. (25,-7).

 

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