Think you’ve got your head wrapped around Matrices? Put your knowledge to
the test. Good luck — the Stickman is counting on you!
Q. 
For this matrix, the following is true:
e11 = 2
This is a 2 × 2 matrix.
Column two is 3, 0.
The determinant is 3.
All of the above
Q. What's the coefficient matrix for the following system of equations?
3x – 4y = 2
x + 2y = 5
All of the above.
None of the above.
Q. For this matrix, find the determinant:
-16
9
12
6
None of the above
Q. What is the formula to find the determinant of a 2 × 2 matrix?
ab – cd
ad – cb
ad + cb
ab + cd
None of the above