Solve the following system of equations on your graphing calculator using the method of your choice.

A. (3, -4)
Correct! You solved the system correctly.

B. (-4, 3)
Incorrect. Did you switch the x- and the y-values of your solution?

C. (19, -28)
Incorrect. Check your matrix and make sure you did not have a wrong sign.

D. No solution.
Incorrect. This system has a solution. Try again.


Find the solution to the system.

  1. (98, 1, 107)
  2. (13.25, 6.5, 6.75)
  3. (2, -1, 3)

A
Incorrect. Check your matrix and make sure you did not have a wrong sign.

B
Incorrect. Check your matrix and make sure you did not have a wrong sign.

C
Incorrect. Check your matrix and make sure you did not have a wrong sign.

D
Correct! You solved the system correctly.


Solve the following systems of equations.

  1. (-2, 1.5, 5.5)
  2. (1, 2, 0)
  3. ( -1, 2, 2)

A
Incorrect. Check your matrix and make sure you did not have a wrong sign.

B
Incorrect. Check your matrix and make sure you did not have a wrong sign.

C
Correct! You solved the system correctly.

D
Incorrect. Check your matrix and make sure you did not have a wrong sign.


What is the solution to the system of equations ?

A. No solution.
Incorrect. Did you solve the system using matrices? If you did, you might be interpreting your solution incorrectly.

B. Infinitely many solutions.
Correct! You solved the system correctly.

C. (1, 2)
Incorrect. Check your matrix and try again.

D. (- 1, 3)
Incorrect. Check your matrix and try again.


What is the solution to the system of equations ?

A. No solution.
Correct! You solved the system correctly.

B. Infinitely many solutions.
Incorrect. Check your solution again.

C. (-1, -3, 2)
Incorrect. Check your matrix and try again.

D. (3, -2, 1)
Incorrect. Check your matrix and try again.