Matrices Quiz

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

• 3 x 4

• 4 x 3

Match each matrix to its correct dimension.

• 1 x 3

• 
• 2 x 3

• 
• 2 x 4

• 
• 4 x 2

• 
• 3 x 1

• 

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

What are the dimensions of this matrix?

• 2 x 3
• 3 x 2
• 6 x 1
• 1 x 6

Multiply

• 25
  25
  5
• -25
  25
  -5
• -10
  -10
  -6
• 10
  10
  6

Which of the following products can NOT be made from these matrices ?

• AB

• BA

• BC

• BD

Matrices can be multiplied only...

• if the row of the first matrix is equal to the column of the second matrix.

• if the column of the first matrix is equal to the column of the second matrix.

• if the column of the first matrix is equal to the row of the second matrix.

• if the row of the first matrix is equal to the row of the second matrix.

Determine the dimensions of the product matrix.

• 3x3

• 2x2

• 3x2

• 2x3

• A
• B
• C
• D

You can multiply a 6X2 matrix by which matrix?

• 6X2
• 2X12
• 3X12
• 6x3