U(x,y)=−[(10−x)2+(10−y)2]U(x,y) = -\big[(10-x)^2 + (10-y)^2\big]U(x,y)=−[(10−x)2+(10−y)2]. All prices equal 111, income =40= 40=40. Optimal (x,y)(x,y)(x,y)?
(10,10)(10,10)(10,10)
(0,0)(0,0)(0,0)
(5,5)(5,5)(5,5)
None of these
