Matrices - Determinants and more

What size is this matrix?

• 2x2

• 2x3

• 3x2

• 1x6

Tags

CCSS.HSN.VM.C.6

CCSS.HSN.VM.C.8

What is the determinant of this matrix?

• -2

• 2

• 10

• 24

Tags

CCSS.HSN.VM.C.12

What is the determinant of this matrix?

• 5

• -5

• 0

• -12

What is the formula for the determinant of a 2x2 matrix?

(a)  

• ad-bc
• ab-cd
• ad+bc
• (a+d)(b+c)

What is the determinant of this matrix?

(a)  

• 0
• 24
• -24
• -12

Add

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

• 
• 
• 
• 

find: B*A

• 47     30
  9     5
• 17     15
  42     35
• 10     25
  7     1
• not possible because rows do not match columns

• A
• B
• C
• D

Calculate the determinant

• 0
• -15
• -70
• 10