Matrices Unit Test

Which matrix is an identity matrix?

• A

• B

• C

• D

What is a Matrix?

• An equation of over 5 numbers or symbols 

• A rectangular arrangement of numbers

• A method of finding the n^th value of a series

• A complicated number system

You can multiply a 2X3 matrix by which matrix?

• 2X2

• 2X12

• 3X12

• 2X3

After completing multiplying the two matrices together, what is the sum of highest value and lowest value inside of the resulting matrix?

• 14

• 13

• 12

• 11

• 
• 
• 
• 

Multiply using the Dot Product

• 
• 
• 
• 

Determine the Inverse Matrix

• 
• 
• There is no Inverse Matrix

• 

Which matrix equation represents this system of equations?

• 
• 
• 
• 

Find A-B

• -3     1
  7     -1

• 1     0
  1     -4

• -4       0
  6     -1

• not possible because rows do not match columns