Intro to Matrices Practice

What is the dimension (order) of the matrix shown?

• ( 2 x 2 )

• ( 1 x 2 )

• ( 2 x 1 )

• ( 2 x 4 )

Perform the operation if possible.

• A

• B

• C

• D

What do w, x, y and z equal in this matrix subtraction?

• w = 13, x = 4, y = 7, z = 23

• w = 13, x = -4, y = 11, z = 23

• w = 13, x = 4, y = 11, z = 23

• w = 13, x = 4, y = 11, z = 17

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

• AB

• BA

• BC

• BD

What do w, x, y and z equal in this matrix equation?

• w = 13, x = 4, y = 7, z = 23

• w = 13, x = -4, y = 11, z = 23

• w = 13, x = 4, y = 11, z = 23

• w = 13, x = 4, y = 11, z = 17

Find 2A-3B

• -3 1

  7 -1

• 1 0

  1 -4

• -4 0

  6 -1

• -14 -5

  11 -3

Find 2B-5A

• 
• 
• 
• 

Identify

• singular matrix

• partial fraction

• coeffecient matrix

• inverse matrix

Determine the type of the matrix

• Upper Triangular Matrix

• Identity Matrix

• Diagonal Matrix

• Lower Triangular Matrix

• Row Matrix

Determine the type of the matrix

• Upper Triangular Matrix

• Identity Matrix

• Diagonal Matrix

• Lower Triangular Matrix

• Row Matrix