Algebra 2 - Matrices, Determinants and Inverses.

Determine whether the matrices are inverses.

• Yes

• No

• Workout

• Valut-Tech

Evaluate the determinant of the matrix.

• -21
• 0
• 9
• 12

Tags

CCSS.HSN.VM.C.12

Calculate the determinant

• 0
• -15
• -70
• 10

Tags

CCSS.HSN.VM.C.12

Dimensions?

• a
• b
• c
• d

What is A^-1?

• 
• 
• 
• 

Tags

CCSS.HSA.REI.C.9

Find the product.

• undefined
• -3   16
  17   12
  8   -10
• 3   12 
  -15  -8
  -1   -3

What must be true in order to MULTIPLY two matrices?

• They must be square.
• The dimensions must be equal.
• The determinant can't equal 0.
• The #of columns of the 1st must equal the # of rows of the 2nd.

Tags

CCSS.HSN.VM.C.8

Solve for matrix Z.

• A
• B
• C
• D

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.C.8

CCSS.HSA.REI.C.9

CCSS.HSN.VM.C.8

What is the area of the triangle with vertices A(41,24), B(3,-1) and C(7,1)?

• 6

• 12

• 18

• 24

Solve for x and y.

• x = -4 and y = 2

• x = -9\2 and y = 2

• x = 9/2 and y = -2

• x = -5 and y = 1