Solve the system of equations. If the system is inconsistent or has dependent equations, say so.x + 
y - 
z = 3 4x + 2y - 2z = 12 -2x - y + z = -6
A. ?; inconsistent system
B. {(x, y, z)|-2x - y + z = -6}; dependent equations
C. {(3, 0, 0)}
D. {(3, 1, 1)}
Answer: B
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Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = 
A. Domain: all points in the xy-plane excluding x = 0; range: real numbers z ? 0; level curves: parabolas 
B. Domain: all points in the xy-plane excluding x = 0; range: all real numbers; level curves: parabolas 
C. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: parabolas 
D. Domain: all points in the xy-plane; range: all real numbers; level curves: parabolas 
Provide an appropriate response. Find the equation of the line that is parallel to the line 3x - 2y = 6 and passes through the point (6, -5). Write the equation in standard form.
A. y = 
x - 4
B. y = 
x - 14
C. y = 
x - 9
D. y = 3x - 23
List the intercepts for the graph of the equation.y = 
A. (1, 1) B. (0, 0) C. (0, 1) D. (1, 0)
Maximize the function
?
?
subject to the constraint 
.
What will be an ideal response?