Let Q1, Q2, Q3 be constants so that (Q1, Q2) is the critical
point of the function f(x, y) = (175)x 2 + (−150)xy + (175)y 2 +
(−200)x + (400)y + (230), and Q3 = 1 if f has a local minimum at
(Q1, Q2), Q3 = 2 if f has a local maximum at (Q1, Q2), Q3 = 3 if f
has a saddle point at (Q1, Q2), and Q3 = 4 otherwise. Let Q = ln(3
+...