Use a graphing device as in Example 4 (or Newtons method
Chapter 14, Problem 14.458(choose chapter or problem)
Use a graphing device as in Example 4 (or Newtons method or a rootfinder) to find the critical points of correct to three decimal places. Then classify the critical points and find the highest or lowest points on the graph f x, y5 10xy 4x 2 3y y 4 f x,
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