Multiply Matrices Review - Blanton

Find the product of the two matrices.

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

Tags

CCSS.HSN.VM.C.8

Find the product of the two matrices.

• 17   12
  25   18
• 8   9
  12   6
• 6   6
  7   5
• 12   10
  10   12

Tags

CCSS.HSN.VM.C.8

Can the operation be performed?

• Yes
• No
• tomato
• Maybe

Tags

CCSS.HSN.VM.C.8

These matrices are being multiplied. Determine the dimension/size of the new matrix. 

• Can't multiply them
• 4  x  2
• 3  x  3
• 4  x  3

Tags

CCSS.HSN.VM.C.8

find: B*A

• 47 30

  9 5

• 17 15

  42 35

• 10 25

  7 1

• not possible because rows do not match columns

Name the order of this matrix.

• 3x1
• 1x3
• 3
• 1

How many columns are in a 5 x 4 matrix?

• 5
• 4
• 20
• 9

Tags

CCSS.HSN.VM.C.6

Add

• 11    8
  -4     2
• 3     2
  -6    -6
• -3    2
  -4    -6
• 10    8
  -6    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

Multiply

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

Tags

CCSS.HSN.VM.C.8