Beginning matrices

What are the dimensions of this matrix?

• 2 x 3
• 3 x 2
• 6 x 1
• 1 x 6

How is the entry of a matrix identified?

• Row x Column

• Column x Row

• Row only

• Column only

How many rows are in a 7 x 3 matrix?

• 7
• 3
• 21
• 10

How many columns are in a 5 x 4 matrix?

• 5
• 4
• 20
• 9

Can the operation be performed?

• Yes

• No

• Sometimes

• I wasn't paying attention

Tags

CCSS.HSN.VM.C.8

What are the dimensions of this matrix?

• 3x1
• 1x3
• 3x3
• 1x1

Subtract

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

Tags

CCSS.HSN.VM.C.8

What is the name of each entry of a matrix?

• Row
• Element
• Dimension
• Rectangle

Add

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

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