Matrix Multiplication

If the matrices can be multiplied, what dimension is the product? If not, write undefined.

• ( 2 x 2 )

• ( 6 x 2)

• ( 2 x 6 ) )

• ( 3 x 2 )

Tags

CCSS.HSN.VM.C.8

If the matrices can be multiplied, what dimension is the product? If not, write undefined.

• undefined

• ( 3 x 1 )

• ( 1 x 2 )

• ( 3 x 2 )

Tags

CCSS.HSN.VM.C.8

If the matrices can be multiplied, what dimension is the product? If not, write undefined.

• ( 3 x 1 )

• ( 3 x 2 )

• ( 3 x 3 )

• undefined

Tags

CCSS.HSN.VM.C.11

Perform the operation if possible.

• A

• B

• C

• D

Tags

CCSS.HSN.VM.C.8

You can multiply a 2X3 matrix by which matrix?

• 2X2
• 2X12
• 3X12
• 2X3

find: B*A

• 47     30
  9     5
• 17     15
  42     35
• 10     25
  7     1
• not possible because rows do not match columns

Tags

CCSS.HSN.VM.C.8

What do m, n, p and q equal in this scalar matrix multiplication?

• m=8, n=9, p=-4, q=4 
• m=15, n = -45, p=20, q=-5
• m=20, n=-5, p=15, q=-45
• m=-5, n=20, p=-45, q=15

Tags

CCSS.HSN.VM.C.7

Determine whether each matrix product is defined.  If so, what are the dimensions of the product.
A_2x3  B_2x5

• no
• yes, 2 x 5
• yes , 3 x 5
• yes , 2 x 3

Tags

CCSS.HSA.APR.A.1

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

Multiply

• 1   2
  6   -8
• -3   -5
  -5   -11
• -2     8
  -6   -12
• 2  -3
  5   -2

Tags

CCSS.HSN.VM.C.8