Posted by Maria on .
Which matrix represents the system of equations below?
10x9y+13z=12
8x7y5z=15
5x+4y6z=12
a. 10,9,13
8,7,5
5,4,6
b.10,9,13
8,7,5
4,4,6
c.10,8,5
9,7,4
13,5,6
d. 10,8,5
9,7,4
13,5,6

Algebra 2 
sasha,
Ans: a.
the matrix will have the same signs of the coefficients of the equations. 
Algebra 2 
Reiny,
Actually none of them do
the constants were completely ignored in all the choices.
You would want what is called the "augmented" matrix
10 9 13 12
8 7 5 15
5 4 6 12
btw, the elements of a matrix are not separated by commas