Think you’ve got your head wrapped around Matrices? Put your knowledge to
the test. Good luck — the Stickman is counting on you!
Q. -x – 5y = 4
x + 2y = 6
Make a coefficient matrix for the above equations:
![](https://media1.shmoop.com/images/algebra-ii/alg2_matrices_quiz_latek_12.png)
![](https://media1.shmoop.com/images/algebra-ii/alg2_matrices_quiz_latek_13.png)
![](https://media1.shmoop.com/images/algebra-ii/alg2_matrices_quiz_latek_14.png)
3
-3
Q. If 3x – y = 5 and 2x – 2y = 5 then:
Dx = 4
Dy = 4
D = 4
D = 5
None of the above
Q. What is the equation for finding y using Cramer's Rule?
y = D/Dy
y = D/Dz
y = Dy/D
y = Dx/D
y = Dz/Dy
Q. If your coefficient determinant is zero:
You have miscalculated the coefficient determinant
You won't get specific values for x and y
You know the lines represented by the equations are parallel or zero
B and C, but not A
None of the above
Q. Cramer's Rule states that:
![](https://media1.shmoop.com/images/algebra-ii/alg2_matrices_quiz_latek_21.png)
![](https://media1.shmoop.com/images/algebra-ii/alg2_matrices_quiz_latek_22.png)
![](https://media1.shmoop.com/images/algebra-ii/alg2_matrices_quiz_latek_23.png)
![](https://media1.shmoop.com/images/algebra-ii/alg2_matrices_quiz_latek_24.png)
None of the above