he critical points of the following function. Use the Second Derivative Test to determine {if possible) whether each critical point corresponds to a local 1cm1 local minimum. or saddle point. It the Second Derivative Test is lnconciusive. determine the behavior of the function at the critical points. t..y)=~fx2 +y2 -4x+8 are the critical points? an ordered pair. Use a comma to separate answers as needed.)