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Notamathgenius

What would be the following system of equations looks like and augmented Matrix? x+y=5 3x+y=-1

  • 11 months ago
  • 11 months ago

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  1. amistre64
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    what does your work look like?

    • 11 months ago
  2. Notamathgenius
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    I haven't done any, I was coming to look for help before I did anything, I don't wanna screw it up.

    • 11 months ago
  3. amistre64
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    you have to "screw it up" in order to learn it better

    • 11 months ago
  4. amistre64
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    pull off the coeffs, and run your row operations ...

    • 11 months ago
  5. Notamathgenius
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    Awww, work darn. I don't have any. I know the answer to the X and Y is (1,4)

    • 11 months ago
  6. amistre64
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    the the augment will have to end in a column of 1 4

    • 11 months ago
  7. Notamathgenius
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    None have "1,4" its all 3 -1 0 5

    • 11 months ago
  8. amistre64
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    assuming youve got the correct 1,4 solution, the augment will have to work out as x+y=5 3x+y=-1 1 1 5 1 0 1 3 1 -1 to 0 1 4

    • 11 months ago
  9. terenzreignz
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    What were those links for?

    • 11 months ago
  10. Notamathgenius
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    The Answers.

    • 11 months ago
  11. amistre64
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    to be more exact ... the "options"

    • 11 months ago
  12. Notamathgenius
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    Yea Options

    • 11 months ago
  13. amistre64
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    the solution of Ax = b (A:b) -> ( I : x)

    • 11 months ago
  14. Notamathgenius
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    I think I got the "answer" |dw:1368457593989:dw|

    • 11 months ago
  15. amistre64
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    that is not an augment ....

    • 11 months ago
  16. Notamathgenius
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    hmm

    • 11 months ago
  17. Notamathgenius
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    Let me ask my mom and ill come back if she can't explain it's easier if i can actually see the work being done

    • 11 months ago
  18. amistre64
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    and your links are not effective ....

    • 11 months ago
  19. Notamathgenius
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    It's because CA locked them -_-

    • 11 months ago
  20. terenzreignz
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    How could (1,4) be a solution of 3x + y = -1 ?

    • 11 months ago
  21. amistre64
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    magic ::)

    • 11 months ago
  22. Notamathgenius
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    It is.

    • 11 months ago
  23. Notamathgenius
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    I know it @amistre64 |dw:1368457855932:dw|

    • 11 months ago
  24. amistre64
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    that is the start of the augment, yes

    • 11 months ago
  25. terenzreignz
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    Well, you have three mods on the case, you can't possibly go wrong now :D

    • 11 months ago
  26. Notamathgenius
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    Well I am not really good in matrix, nor algebra. So I need all the help I can get.

    • 11 months ago
  27. amistre64
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    assuming: 3x - y = -1 was part of the question

    • 11 months ago
  28. Notamathgenius
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    Yes

    • 11 months ago
  29. amistre64
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    that is the matrix to augment, but is not the augmented matrix yet

    • 11 months ago
  30. Notamathgenius
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    1 thing why am I learning matrix in 9th grade?

    • 11 months ago
  31. amistre64
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    because they are important

    • 11 months ago
  32. Notamathgenius
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    But isn't that 11th and 12th grade stuff?

    • 11 months ago
  33. amistre64
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    apparently not :)

    • 11 months ago
  34. Notamathgenius
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    Gawdddddd well ok back to the subject

    • 11 months ago
  35. amistre64
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    there are 3 basic methods to solving systems of equations: substitution elimination matrix row operations matrix row operations are really just a combination of the other 2

    • 11 months ago
  36. Notamathgenius
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    I was thinking Substitution since I know it better

    • 11 months ago
  37. amistre64
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    substitution is not ideal for most situations ... its only effective on the hand picked easy peasy things they give you to practice on

    • 11 months ago
  38. Notamathgenius
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    Ohhhh ok :D

    • 11 months ago
  39. terenzreignz
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    I figure if you can do elimination, Matrix Row Operations shouldn't be a problem, it's essentially the same thing, without the variables...

    • 11 months ago
  40. amistre64
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    most solutions to real world problems require a computer to work on them, and the row operations are better suited to optimize a computers functionality

    • 11 months ago
  41. Notamathgenius
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    Ok can we explain to the imbecile (me) how to do so?

    • 11 months ago
  42. amistre64
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    row operations are pretty much the elimination method x + y = 5 : *-3 3x - y = -1 -3x -3y = -15 3x - y = -1 ------------- 0x -4y = -16 x + y = 5 0x -4y = -16 : /-4 x + y = 5 0x + y = 4 : * -1 x + y = 5 0x - y = -4 ----------- x + 0y = 1 x+0y = 1 0x + y = 4

    • 11 months ago
  43. amistre64
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    a matrix is a way to organize the same setup without the rest of the notation getting in the way

    • 11 months ago
  44. terenzreignz
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    Mother of details o.O

    • 11 months ago
  45. Notamathgenius
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    Ok i see now :D

    • 11 months ago
  46. amistre64
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    it takes some practice, but its fine :) good luck

    • 11 months ago
  47. Notamathgenius
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    I will take that too go :D thank you times a million @amistre64

    • 11 months ago
  48. Notamathgenius
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    Thank you too @terenzreignz

    • 11 months ago
  49. terenzreignz
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    I hardly did anything, but okay, no problem :)

    • 11 months ago
  50. Notamathgenius
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    It's fine at least you helped I would medal you too but i cant D: -gives medal- internet medal :D

    • 11 months ago
  51. terenzreignz
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    LOL Thanks :)

    • 11 months ago
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