Systems Matrix

Solve the system using matrices
x + 2y = 2
5x - 6y = - 54

• (-6, 4)

• (-8, 4)

• (8, 4)

• (6, 4)

Solve the system using matrices
x + 7y = - 21
9x + 7y = 35

• (7, -4)

• (-4, 7)

• (7, 4)

• (-4, -7)

What is A^-1?

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Solve the following system of equations.

• (-7, -5)

• (-7, -9)

• (7, -9)

• (-7, 5)

Solve the system of equations using a matrix technique and your GC

• ( 4, 2, -1)

• ( 4, 3, -1)

• None of these

• ( -4, 3, 1)

How can the system of equations be represented in a matrix?

• A

• B

• C

• D

Solve the system of equations using a matrix technique and your GC

• ( 4, 0, -2)

• ( -4, -2, 0)

• None of these

• ( -4, 0, -2)

Solve:
-4x - 5y - z = 18
-2x - 5y - 2z = 12
-2x + 5y + 2z = 4

• (4, 0, -2)

• (-4, 0, -2)

• Many Solutions

• I did not get any of the answers above so I am assuming none of the above.

• A

• B

• C

• D

Write the matrix equation for the system.

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