Matrix Review for test!

Given matrices A and B find B+A

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• 
• 

Tags

CCSS.HSN.VM.C.8

Find X - Y

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• 
• 
• 

Tags

CCSS.HSN.VM.C.8

Find V + X

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• Does Not Exist

Tags

CCSS.HSN.VM.C.8

Subtract

• -5
  -8
  3
  10
• -9
  8
  3
  2
• 5
  -8
  3
  10
• -5
  8
  3
  2

Tags

CCSS.HSN.VM.C.8

Multiply

• 20     15    -10
  30     -5         0
• -20      15     -10
  30     -5          0
• 1        8       3
  11     4        5
• 20     -15     10
  -30         5        0  

Tags

CCSS.HSN.VM.C.7

What must be true in order to ADD two matrices?

• They must be square.

• Their dimensions must be equal.

• The number of columns of the 1st must equal the number of rows of the second.

• The number of rows of the 1st must equal the number of columns of the second.

Tags

CCSS.HSN.VM.C.8

What must be true in order to MULTIPLY two matrices?

• They must be square.

• Their dimensions must be equal.

• The number of columns of the 1st must equal the number of rows of the second.

• The number of rows of the 1st must equal the number of columns of the second.

Tags

CCSS.HSN.VM.C.8

What are the dimensions of this matrix?

• 2 x 3

• 3 x 2

• undefined

[A] is a 2x3 matrix.

[B] is a 2x5 matrix.

Determine whether the matrix product of [A]*[B] is defined. If so, what are the dimensions of the product?

• undefined

• 2x5

• 3x5

• 2x3

Tags

CCSS.HSN.VM.C.8

[A] is a 5x3 matrix.

[B] is a 3x5 matrix.

Determine whether the matrix product of [B]*[A] is defined. If so, what are the dimensions of the product?

• undefined

• 3x3

• 5x5

• 3x5

Tags

CCSS.HSN.VM.C.8