Matrices Addition Subtraction and Multiplication

Given matrices A and B find B+A

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What must be true in order to ADD two matrices?

• They must be square.

• The dimensions must be equal.

• There can't be any zeros.

• The column of the 1st must equal the row of the 2nd.

Which of the matrix operations could NOT be performed? Check all that apply!

• X + Y

• V - X

• Z - W

• (W - Z ) + V

• W + Y - X

Subtract

• 3    -8
  0   -1

• 3   -4
  8  -13

• -3   8
  0    1

• 3   -8
  -8    1

Perform the indicated operation

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• not possible

Calculator Allowed

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• A

• B

• C

• D

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• Not enough info

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• b

• c

• d

Calculator Allowed

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