Matrix Review

A matrix is a __________ array of numbers.

What do the arrows represent?

• Matrix Rows

• Matrix Columns

What do the arrows represent?

• Matrix Rows

• Matrix Columns

What are the dimensions for the matrix?

What element is in position a₃₃ in matrix A?

What is the position of element 56 in Matrix A?

Perform the operation for Matrix A and Matrix B:

A + B

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Perform the operation for Matrix A and Matrix B:

B - A

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Perform the operation for Matrix A and B, if possible. Write NP if not possible.

A x B

What must be true in order to ADD two matrices?

• They must be square.

• The dimensions must be equal.

• The determinant can't equal 0.

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