Answer Happy

Find the domain of the following function. x-6 y-2 f(x,y) = sin Select the correct choice below and fill in any answer boxes within your choice. OA. {(x,y): x and y (Use a comma to separate answers as needed.) OB. {(x,y): y } (Use a comma to separate answers as needed.) c. {(x,y): x‡ (Use a comma to separate answers as needed.) OD. R²
Find the domain of the following function. f(x,y) = 8xy-7x + 6y Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. {(x,y): <0} B. {(x,y): >0} O c. {(x,y): x#y} D. {(x,y): x* OE. R² and y} (Use a comma to separate answers as needed.)
Evaluate the limit. lim (x,y) →(8,8) √√x+y -4 x+y-16 Find an expression that is equal to f(x,y) = √√x+y -4 OA. x+y-16 O A. for all (x,y) in the domain of f. (Simplify your answer.) O B. The function f(x,y) is already in a form suitable for finding the limit, if it exists. Evaluate the limit. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. √x+y -4 x+y-16 lim (x,y) →(8,8) OB. The limit does not exist. √√x+y -4 x+y-16' for all (x,y) in the domain of f, that will be better suited to find the limit, if it exists. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. …….. (Simplify your answer.)