Solving Linear Equations Using Matrix Inverse

If matrices A and B are inverse of each other then

• AB=BA

• AB=BA=I

• AB=BA=O

• AB=O, BA= I

Which option below correctly shows the steps to find the inverse of this matrix?

• 
• 
• 
• No Inverse Exists

Solve the following equation or state if there is no unique solution.

• Undefined

• [9]
  [-9]

• [-9]
  [9]

• [11]
  [-9]

the matrix that gives you the identity matrix when multiplied by the original matrix

• Scalar Multiplication

• Square Matrix

• Multiplicative Identity Matrix

• Multiplicative Inverse Matrix

The arrow points to what part of a Matrix Equation?

• Coefficient Matrix

• Variable Matrix

• Constant Matrix

• Vegetable Matrix

Multiply: [A]^-1.[B]

• 
• 
• 
• A^-1 Does not Exist. It is Singular.

Solve the system using matrices.

• A

• B

• C

• D

Solve the system using matrices.

• A

• B

• C

• D

Solve the system using inverse matrices or Cramer's rule.

-5x + 5y = -10

-7x + 4y = 13

• (-7, -5)

• (-7, -9)

• (7, -9)

• (-7, 5)

Multiply the inverse by the constant matrix to solve for x.