Matrices Quiz 1-2

In Matrix R (pictured) what element is in the second row, third column?

• 8
• 9.01
• 6
• 1

Subtract

• -5
  -8
  3
  10
• -9
  8
  3
  2
• 5
  -8
  3
  10
• -5
  8
  3
  2

Tags

CCSS.HSN.VM.C.8

Add

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

Tags

CCSS.HSN.VM.C.8

What are the dimensions of this matrix?

• 2 x 3
• 3 x 2
• 6 x 1
• 1 x 6

Tags

CCSS.HSN.VM.C.8

CCSS.HSN.VM.C.6

Dimensions?

• a
• b
• c
• d

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

Identify

• Cramer's Rule
• row echelon form
• Identity matrix
• inverse matrix

Tags

CCSS.HSN.VM.C.10

How many columns are in a 5 x 4 matrix?

• 5
• 4
• 20
• 9

Tags

CCSS.HSN.VM.C.6

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

Tags

CCSS.HSN.VM.C.8

Which matrix has an undefined inverse?
*undefined matrices have determinants of 0

• [1  2]
  [0  3]
• [1/2  3/4]
  [4/2  9/3]

Tags

CCSS.HSA.REI.C.9