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* – 5*y* = 4

*x* + 2*y* = 6

Make a coefficient matrix for the above equations:

3

-3

Q. If 3*x* – *y* = 5 and 2*x* – 2*y* = 5 then:

D_{x} = 4

D_{y} = 4

D = 4

D = 5

None of the above

Q. What is the equation for finding y using Cramer's Rule?

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:

None of the above