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 satisfying x 2 + y 2 = 100; range: real numbers 0 ≤ z ≤ 10; level curves: circles with centers at (0, 0) and radii r, 0

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 xy-plane satisfying x 2 + y 2 = 100; range: real numbers 0 ≤ z ≤ 10; level curves: circles with centers at (0, 0) and radii r, 0 < r ≤ 10 
B) Domain: all points in the xy-plane satisfying x 2 + y 2 ≤ 100; range: real numbers 0 ≤ z ≤ 10; level curves: circles with centers at (0, 0) and radii r, 0 < r ≤ 10 
C) Domain: all points in the xy-plane; range: real numbers 0 ≤ z ≤ 10; level curves: circles with centers at (0, 0) and radii r, 0 < r ≤ 10 
D) Domain: all points in the xy-plane; range: all real numbers; level curves: circles with centers at (0,0)

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 xy-plane satisfying x 2 + y 2 = 100; range: real numbers 0 ≤ z ≤ 10; level curves: circles with centers at (0, 0) and radii r, 0 < r ≤ 10 
B) Domain: all points in the xy-plane satisfying x 2 + y 2 ≤ 100; range: real numbers 0 ≤ z ≤ 10; level curves: circles with centers at (0, 0) and radii r, 0 < r ≤ 10 
C) Domain: all points in the xy-plane; range: real numbers 0 ≤ z ≤ 10; level curves: circles with centers at (0, 0) and radii r, 0 < r ≤ 10 
D) Domain: all points in the xy-plane; range: all real numbers; level curves: circles with centers at (0,0)

Find the Domain and Range and Describe the Level Curves