Use Cramer's rule to solve the linear system.
A. x = 5, y = 7, z = 5
B. x = 10, y = 3, z = 7
C. x = 9, y = 5, z = 7
D. x = 9, y = -5, z = -7
Answer: C
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Provide an appropriate response.Over what intervals of x-values, if any, does the function y = 
decrease as x increases? For what values of x, if any, is y ' negative? How are your answers related?
What will be an ideal response?
Use graphical methods to find values of x and y satisfying the given conditions. Find the value of the maximum or minimum.Find x ? 0 and y ? 0 such that2x + 4y ? 12 2x + y ? 8 and z = 6x + 8y is minimized.
A. Minimum of 36 when x = 6 and y = 0
B. Minimum of 0 when x = 0 and y = 0
C. Minimum of 
when x = 
and y = 
D. Minimum of 26 when x = 3 and y = 1
Solve the problem.Four members are running for president of the Greater New Orleans Stamp Club: Andy (a), 
Carol (c), and Denise (d). The voter profile is summarized in the table. 
Use the Hare Method to determine the winner.
A. Andy B. Denise C. Brett D. Carol
Graph the equations.f(x) = 4x2
A. 
B. 
C. 
D. 