Notamathgenius
  • Notamathgenius
What would be the following system of equations looks like and augmented Matrix? x+y=5 3x+y=-1
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
amistre64
  • amistre64
what does your work look like?
Notamathgenius
  • Notamathgenius
I haven't done any, I was coming to look for help before I did anything, I don't wanna screw it up.
amistre64
  • amistre64
you have to "screw it up" in order to learn it better

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amistre64
  • amistre64
pull off the coeffs, and run your row operations ...
Notamathgenius
  • Notamathgenius
Awww, work darn. I don't have any. I know the answer to the X and Y is (1,4)
amistre64
  • amistre64
the the augment will have to end in a column of 1 4
Notamathgenius
  • Notamathgenius
None have "1,4" its all 3 -1 0 5
amistre64
  • amistre64
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
terenzreignz
  • terenzreignz
What were those links for?
Notamathgenius
  • Notamathgenius
The Answers.
amistre64
  • amistre64
to be more exact ... the "options"
Notamathgenius
  • Notamathgenius
Yea Options
amistre64
  • amistre64
the solution of Ax = b (A:b) -> ( I : x)
Notamathgenius
  • Notamathgenius
I think I got the "answer" |dw:1368457593989:dw|
amistre64
  • amistre64
that is not an augment ....
Notamathgenius
  • Notamathgenius
hmm
Notamathgenius
  • Notamathgenius
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
amistre64
  • amistre64
and your links are not effective ....
Notamathgenius
  • Notamathgenius
It's because CA locked them -_-
terenzreignz
  • terenzreignz
How could (1,4) be a solution of 3x + y = -1 ?
amistre64
  • amistre64
magic ::)
Notamathgenius
  • Notamathgenius
It is.
Notamathgenius
  • Notamathgenius
I know it @amistre64 |dw:1368457855932:dw|
amistre64
  • amistre64
that is the start of the augment, yes
terenzreignz
  • terenzreignz
Well, you have three mods on the case, you can't possibly go wrong now :D
Notamathgenius
  • Notamathgenius
Well I am not really good in matrix, nor algebra. So I need all the help I can get.
amistre64
  • amistre64
assuming: 3x - y = -1 was part of the question
Notamathgenius
  • Notamathgenius
Yes
amistre64
  • amistre64
that is the matrix to augment, but is not the augmented matrix yet
Notamathgenius
  • Notamathgenius
1 thing why am I learning matrix in 9th grade?
amistre64
  • amistre64
because they are important
Notamathgenius
  • Notamathgenius
But isn't that 11th and 12th grade stuff?
amistre64
  • amistre64
apparently not :)
Notamathgenius
  • Notamathgenius
Gawdddddd well ok back to the subject
amistre64
  • amistre64
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
Notamathgenius
  • Notamathgenius
I was thinking Substitution since I know it better
amistre64
  • amistre64
substitution is not ideal for most situations ... its only effective on the hand picked easy peasy things they give you to practice on
Notamathgenius
  • Notamathgenius
Ohhhh ok :D
terenzreignz
  • terenzreignz
I figure if you can do elimination, Matrix Row Operations shouldn't be a problem, it's essentially the same thing, without the variables...
amistre64
  • amistre64
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
Notamathgenius
  • Notamathgenius
Ok can we explain to the imbecile (me) how to do so?
amistre64
  • amistre64
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
amistre64
  • amistre64
a matrix is a way to organize the same setup without the rest of the notation getting in the way
terenzreignz
  • terenzreignz
Mother of details o.O
Notamathgenius
  • Notamathgenius
Ok i see now :D
amistre64
  • amistre64
it takes some practice, but its fine :) good luck
Notamathgenius
  • Notamathgenius
I will take that too go :D thank you times a million @amistre64
Notamathgenius
  • Notamathgenius
Thank you too @terenzreignz
terenzreignz
  • terenzreignz
I hardly did anything, but okay, no problem :)
Notamathgenius
  • Notamathgenius
It's fine at least you helped I would medal you too but i cant D: -gives medal- internet medal :D
terenzreignz
  • terenzreignz
LOL Thanks :)
anonymous
  • anonymous
wat are the answers though im in connections academy

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