A2CP - Practice 3-X Operations with Matrices

What are the dimensions of this matrix?

• 4x3

• 3x4

• 3

• 4

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

What is a Matrix?

• An equation of over 5 numbers or symbols 
• A set of numbers in rows and columns
• A method of finding the n^th value of a series
• A complicated number system

Tags

CCSS.HSN.VM.C.8

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

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.8

Find B-A

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

Tags

CCSS.HSN.VM.C.8

What must be true in order to ADD two matrices?

• They must be square.
• The dimensions must be equal.
• The determinant can't equal 0.
• The column of the 1st must equal the row of the 2nd.

Tags

CCSS.HSN.VM.C.8

Perform the indicated operation

• 
• 
• 
• 
• not possible

Tags

CCSS.HSN.VM.C.8

Perform the indicated operation

• 
• 
• 
• 
• not possible

Tags

CCSS.HSN.VM.C.8

Perform the following operation

• 
• 
• 
• 
• not possible

Tags

CCSS.HSN.VM.C.8