Given a function f(x,y) = x* + 2y+ 8xy - 7 The critical points of f(x,y) occur at the points P(0 , 0) , Q(2 , – 4) , R(-2,4) Determine whether the function f(x,y) has a Local Maximum , a Local Minimum or a Saddle point at the critical points.P, Q and R. The function f(x,y) has : at P, at Q and at R Instructions If the Function has a Local Maximum , Enter 1 in the Answer Box If the Function has a Local Minimum , Enter 2 in the Answer Box If the Function has a Saddle Point , Enter 3 in the Answer Box.

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