This is the inverse of matrix A.
1 1 -1
-3 2 -1
3 -3 2

A is a matrix that represents a system of equations. If [A] x =2
y 1
z -1
, what does y equal?

A. -3 C. 4
B. 1 D. 5

Question

This is the inverse of matrix A.
1 1 -1
-3 2	-1
3 -3	2


A is a matrix that represents a system of equations. If [A]  x =2
                          y    1
                          z	-1	
, what does y equal?

A. -3	C. 4
B. 1		D. 5

anonymous · Answer

[A] x    2
     y = 1
     z    -1

jdoe0001 · Answer

the w0t?

jdoe0001 · Answer

well, I see that, but looks more like a 3x3 times a 1x3 matrices :|, which will  yield a 3x1, not a number alone

jdoe0001 · Answer

@rebekita01 so, what is it you need again?

jdoe0001 · Answer

well, yes, y would be 1, but, that'd be a given from the questioin :)

anonymous · Answer

what does y equal

jdoe0001 · Answer

well, you see, at least myself, I don't know what's being sought after :/

jdoe0001 · Answer

so far I can see the inverse matrix $A^{-1}$, but dunno about the rest