3.4-3.5 Review

What are the dimensions of this matrix?

• 2 x 3
• 3 x 2
• 6 x 1
• 1 x 6

Tags

CCSS.HSN.VM.C.6

Find A+B

• 8     10
  8      1 
• 12     25
  7     1
• 10     30
  0     1
• can't add two together because the rows dont match columns

Tags

CCSS.HSN.VM.C.8

Find A-B

• -3     1
  7     -1
• 1     0
  1     -4
• -4       0
  6     -1
• not possible because rows do not match columns

Tags

CCSS.HSN.VM.C.8

Subtract

• 3    -8
  0   -1
• 3   -4
  8  -13
• -3   8
  0    1
• 3   -8
  -8    1

Tags

CCSS.HSN.VM.C.8

How many rows are in a 7 x 3 matrix?

• 7
• 3
• 21
• 10

Tags

CCSS.HSN.VM.C.6

Subtract

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

Tags

CCSS.HSN.VM.C.8

How many columns are in a 5 x 4 matrix?

• 5
• 4
• 20
• 9

Tags

CCSS.HSN.VM.C.6

Find B-A

• -3     1
  7     -1
• 1     0
  1     -4
• 4       0
  -6     1

• not possible because rows do not match columns

Tags

CCSS.HSN.VM.C.8

What is the dimension of matrix B?

• 3 x 2

• 2 x 3

• 3 x 3

• 2 x 2

Tags

CCSS.HSN.VM.C.6

Find the sum

• 
• 
• 
• 

Tags

CCSS.HSN.VM.C.8