Matrix Vocabulary and Operations

What is the size of the matrix below? Always do Rows x Columns.

• 3 x 4

• 4 x 3

Which element is located in A₂₃?

• -3

• 5

• -9

• 2

What is the location of 5?

• A₁₂

• A₂₁

• A₂₅

• A₁₃

Match each matrix to its correct dimension.

• 3 x 1

• 
• 2 x 3

• 
• 1 x 3

• 
• 2 x 4

• 
• 4 x 2

• 

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

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

Which of the matrix operations could NOT be performed? Check all that apply!

• X + Y

• V - X

• Z - W

• (W - Z ) + V

• W + Y - X

Tags

CCSS.HSN.VM.C.8

Find V + X

• 
• 
• 
• Does Not Exist

Tags

CCSS.HSN.VM.C.8

Find Z - W

• 
• 
• 
• Does Not Exist

Tags

CCSS.HSN.VM.C.8

Find W + Y + Z

• 
• 
• 
• Does Not Exist

Tags

CCSS.HSN.VM.C.8