Asked by Maria

Which matrix represents the system of equations below?

-10x-9y+13z=12
8x-7y-5z=15
5x+4y-6z=-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

Answers

Answered by sasha
Ans: a.

the matrix will have the same signs of the coefficients of the equations.
Answered by 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
Answered by Mephiles
8 years later and this question still comes in handy!
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