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 first quadrant of the xy-plane; range: all real numbers; level curves: lines x + y = c
B) Domain: all points in the first quadrant of the xy-plane; range: real numbers z 0; level curves: lines x + y = c
C) Domain: all points in the xy-plane; range: real numbers z 0; level curves: lines x + y = c
D) Domain: all points in the xy-plane; range: all real numbers; level curves: lines x + y = c

Question

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 first quadrant of the xy-plane; range: all real numbers; level curves: lines x + y = c 
B) Domain: all points in the first quadrant of the xy-plane; range: real numbers z > 0; level curves: lines x + y = c 
C) Domain: all points in the xy-plane; range: real numbers z > 0; level curves: lines x + y = c 
D) Domain: all points in the xy-plane; range: all real numbers; level curves: lines x + y = c

Quizplus · Accepted Answer

The Answer of 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 first quadrant of the xy-plane; range: all real numbers; level curves: lines x + y = c 
B) Domain: all points in the first quadrant of the xy-plane; range: real numbers z > 0; level curves: lines x + y = c 
C) Domain: all points in the xy-plane; range: real numbers z > 0; level curves: lines x + y = c 
D) Domain: all points in the xy-plane; range: all real numbers; level curves: lines x + y = c

Find the Domain and Range and Describe the Level Curves