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I need help solving this system of a linear equation based on the attached augmented MATRIX
 one year ago
 one year ago
jump Group Title
I need help solving this system of a linear equation based on the attached augmented MATRIX
 one year ago
 one year ago

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jump Group TitleBest ResponseYou've already chosen the best response.0
dw:1355196230716:dw
 one year ago

PhoenixFire Group TitleBest ResponseYou've already chosen the best response.1
You need to reduce it to something like this: dw:1355198633863:dw
 one year ago

jump Group TitleBest ResponseYou've already chosen the best response.0
yeh, i watched some video chalkboard examples, but they didn't have the bigger numbers in matrix! its got me vexed...lol
 one year ago

PhoenixFire Group TitleBest ResponseYou've already chosen the best response.1
It's a thing called "Reduced Row Echelon Form". So firstly start by making m(row)(column) m00 = 1 then m10 = 0 then m20=0 So the first colum will be 1, 0, 0
 one year ago

PhoenixFire Group TitleBest ResponseYou've already chosen the best response.1
If you swap Row 2 with row 1 it'll put that 1 in the right place allowing you to make the rest of the column 0 easier.
 one year ago

jump Group TitleBest ResponseYou've already chosen the best response.0
how do i get 100 with that starting matrix though 3,1,2? canu show me the next couple steps on this problem?
 one year ago

PhoenixFire Group TitleBest ResponseYou've already chosen the best response.1
I with this was easier to type on a computer =( dw:1355199296801:dw
 one year ago

jump Group TitleBest ResponseYou've already chosen the best response.0
so i can just change the position of rowa 1 and 2?
 one year ago

PhoenixFire Group TitleBest ResponseYou've already chosen the best response.1
Yes, but you have to change the ENTIRE row.. Hence why they're called "Row Operations" 1) Interchange two rows. 2) Multiple a row by any nonzero number 3) Add a multiple of a row to another row.
 one year ago

jump Group TitleBest ResponseYou've already chosen the best response.0
yes, i find the draw pad fastest...lol
 one year ago

jump Group TitleBest ResponseYou've already chosen the best response.0
i think i am mentally wounded on this. just been way too long since i had to do one!! hate to ask, but my answer choices are like (1,1,0). how do i get it rest of the way to that. i don't trust myself on this one if i did get to the end!@
 one year ago

jump Group TitleBest ResponseYou've already chosen the best response.0
if its easier to work out on ur notepad,thats ok just pass me the 3 valuessoi can get out of this section. I'm definitely going to needto go back thru the tutorialfromthe start on these matrix'?
 one year ago

PhoenixFire Group TitleBest ResponseYou've already chosen the best response.1
Only notebook I could find nearby, sorry it's hard to read but my values are: 1, 1, 0
 one year ago

PhoenixFire Group TitleBest ResponseYou've already chosen the best response.1
\[3x_1+x_22x_3=2\]\[3(1)+(1)2(0)=31=2\]
 one year ago

PhoenixFire Group TitleBest ResponseYou've already chosen the best response.1
\[x_12x_2+x_3=3\]\[(1)2(1)+0=1+2=3\] \[2x_1x_23x_3=3\]\[2(1)(1)3(0)=2+1=3\] The values work in all equations therefore 1, 1, 0 is correct
 one year ago

jump Group TitleBest ResponseYou've already chosen the best response.0
Thanksfor the extra effort to show me ur work , i'mgoing to have to study that before my next test!
 one year ago

PhoenixFire Group TitleBest ResponseYou've already chosen the best response.1
No problem, when I learnt it I had lots of trouble getting it right. Just keep practicing!
 one year ago
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