Discrete - Matrices Test Review

Add

• 11    8
  -4     2
• 3     2
  -6    -6
• -3    2
  -4    -6
• 10    8
  -6    2

What are the dimensions of this matrix?

• 2 x 3
• 3 x 2
• 6 x 1
• 1 x 6

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

Perform the indicated operation.  If it’s not possible, select Not Possible. 

• 7
  -7
  -6
  20
• 7 
  -9
  -6
  20
• Not Possible
• 7
  -9
  2
  20

Tags

CCSS.HSN.VM.C.8

You can multiply a 2X3 matrix by which matrix?

• 2X2
• 2X12
• 3X12
• 2X3

In Matrix R (pictured) what element is a₂₃?

• 8
• 9.01
• 6
• 1

Find the product of the matrices.

• A
• B
• C
• D

Tags

CCSS.HSA.APR.A.1

Given matrices A & B: 
A is a (4x33) matrix
B is a (33x1) matrix
 What are the dimensions of the product of A times B?

• 4x1
• 4x33
• 33x1
• Matrix does not exist

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

matrix A = 2 x 7,
matrix B = 7 x 2
 Determine which of the following operations exist.  

• A + B
• AB
• BA
• AB^t