Find all points (x,y) where f(x,y) has a possible relative maximum or minimum. _ 2 2 ftX.y) - 2x +3xy-y +X+y E> What are the possible point{s)? (Type an ordered pair. Type an exact answer in simplified form. Use a comma to separate answers as needed.) Find all points (x,y) where f(x,y) has a possible relative maximum or minimum. 4 2 f(x,y) = 2x 24xy + y 10 E> What are all the possible points? (Type an ordered pair. Use a comma to separate answers as needed.) Minimize 4x + 2y , subject to the constraint 144 - 4x - 2y = 0. Identify the function f(x,y) and the constraint g(x,y). f ( x,y ) = 4x2 + 242 g(x,y) = 144 -4x - 2y The minimum value of the function is (Type an exact answer in simplified form.)