Matrix Addition Subtraction and Scalar

• A

• B

• C

• D

• E

AFTER multiplying by the scalar, what will the second row of the matrix be? Put one number in each box in the correct order.

What is the word that means to multiply a coefficient to a matrix for a different quantity?

• Dimension

• Binomial

• Scalar

• Experiment

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• 
• 

If G = [[3, -2], [-1, 4]] and q = 3, what is the result of qG?

• [[9, -6], [-3, 12]]

• [[6, -4], [-2, 8]]

• [[1, -2], [-1, 4]]

• [[3, -2], [-1, 4]]

• 
• undefined/not possible

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• 

Perform scalar multiplication on the matrix

• A

• B

• C

• D

AFTER multiplying by the scalar, what will this element be?

a₁₂

What is the result of scalar multiplication of the matrix [[1, -2], [3, 4]] by the scalar -2?

• [[-2, 4], [-6, -8]]

• [[2, -4], [6, 8]]

• [[1, -2], [3, 4]]

• [[-1, 2], [-3, -4]]

When multiplying a matrix by a scalar, does the size of the matrix change?

• No

• Yes, it becomes larger

• No, it becomes a different shape

• Yes, it becomes smaller