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; range: all real numbers; level curves: circles with centers at 
B. Domain: all points in the xy-plane satisfying x2 + y2 ? 9; range: real numbers 0 ? z ? 3; level curves: circles with centers at (0, 0) and radii r, 0 < r ? 3
C. Domain: all points in the xy-plane satisfying x2 + y2 = 9; range: real numbers 0 ? z ? 3; level curves: circles with centers at (0, 0) and radii r, 0 < r ? 3
D. Domain: all points in the xy-plane; range: real numbers 0 ? z ? 3; level curves: circles with centers at (0, 0) and radii r, 0 < r ? 3
Answer: B
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Graph the equation.(x - 2)2 + (y - 4)2 = 4
A. 
B. 
C. 
D. 
Factor completely.x2 + 5xy - 14y2
A. (x - 7y)(x + y) B. (x - 7y)(x + 2y) C. (x - y)(x + 2y) D. (x + 7y)(x - 2y)
Find all the first order partial derivatives for the following function.f(x, y) = 2x - 6y2 - 5
A. 
= 2; 
= -12y
B. 
= -3; 
= -12y - 5
C. 
= -12y; 
= 2
D. 
= 2x; 
= -12y
In the following question(s), FN represents the Nth Fibonacci number.FF3 +
=
A. 3 B. 26 C. 25 D. 2 E. none of these