Precalc 5.8 Pt 2 Matrix Equations

Write the system as a matrix equation.

p + q = 7

p - 3q = - 4

• 
• 
• 
• 

Tags

CCSS.HSA.REI.C.8

Choose the option that would give you the values of k and j.

5k - 6j = 10

-7k + j = 8

• 
• 
• 
• 

Tags

CCSS.HSA.REI.C.9

Find value of r and s using the matrix inverse.

• r = 1/3 and s = 1/4

• r = 1/2 and s = 1/3

• r = 1/3 and s = 1/2

• r = 1/2 and s = 1/3

Tags

CCSS.HSA.REI.C.9

Solve the system using a matrix equation.  
-5x + 5y = -10
-7x + 4y = 13

• (-7, -5)
• (-7, -9)
• (7, -9)
• (-7, 5)

Tags

CCSS.HSA.REI.C.9

• (1, -3, -1)

• (1, 3, 1)

• (-1, 3, 1)

• (-1, -3, -1)

Tags

CCSS.HSA.REI.C.9

find: B*A

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

Tags

CCSS.HSN.VM.C.8

Find B-A

• -3     1
  7     -1
• 1     0
  1     -4
• 4       0

  -6     1

• not possible because rows do not match columns

Tags

CCSS.HSN.VM.C.8

Calculate the determinant

• 0
• none
• -32
• -8