SOLUTION: Which matrix equation represents the system of equations? {{{-x+2y=0}}} {{{y=-2}}} A) [[-1 2][1 0]][[x][y]]=[[0][-2]] B) [[-1 2][0 1]][[x][y]]=[[0][-2]] C) [[x][y]][[-1

Algebra ->  Matrices-and-determiminant -> SOLUTION: Which matrix equation represents the system of equations? {{{-x+2y=0}}} {{{y=-2}}} A) [[-1 2][1 0]][[x][y]]=[[0][-2]] B) [[-1 2][0 1]][[x][y]]=[[0][-2]] C) [[x][y]][[-1       Log On


   

Question 1118925: Which matrix equation represents the system of equations?
-x%2B2y=0
y=-2
A) [[-1 2][1 0]][[x][y]]=[[0][-2]]
B) [[-1 2][0 1]][[x][y]]=[[0][-2]]
C) [[x][y]][[-1 2][0 1]]=[[0][-2]]
D) [[-1 2][0 1]][[y][x]]=[[0][-2]]
I have been told this is an acceptable way to format matrices as plain text. Here is a screenshot in case of any mistakes or for easier viewing.
https://postimg.cc/image/95cj0idev/
Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


I haven't seen matrices displayed this way; however, the question you asked makes it clear how the display is to be interpreted.

The two rows of the first matrix contain the coefficients of the two variables in the two equations: [-1 2] and [0 1].
The two rows in the second matrix contain the two variables: [x] and [y].
The product matrix contains the constant terms of the two equations when they are in Ax+By=C form: [0] [-2]

So answer B.