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Which matrix is matrix B?

Which matrix is matrix B?-example-1
User Pancake
by
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2 Answers

5 votes

Answer: B.

Step-by-step explanation: I got this right on Edmentum.

Which matrix is matrix B?-example-1
User Sean Kladek
by
7.4k points
6 votes

It's B.

You can think of the action of multiplying matrix A onto any other matrix X as

• preserving the first row of X due to the +1 in the first column of the first row,

• negating the second row of X due to the -1 in the second column of the second row, and

• preserving the third row of X due to the +1 in the third column of the third row.

User Tom Hebb
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