Find the critical point of f(x,y)=(x−1)2+(y+2)2f(x, y) = (x-1)^2 + (y+2)^2f(x,y)=(x−1)2+(y+2)2.
(1,−2)(1, -2)(1,−2)
(−1,2)(-1, 2)(−1,2)
(0,0)(0, 0)(0,0)
(1,2)(1, 2)(1,2)