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(Solved): Let f(x,y) be a function that has (1,4) as a critical point. We determine that fxo(1,4)=9, ...
Let be a function that has as a critical point. We determine that , and . What does the D-test tell us about the function f? A. thas a relative maximum at . B. f has a rolative minimum at C. Thas a saddle point at . D. The answer cannot be determined from the information given.
Expert Answer
Given, the function f(x,y)has a critical point (1,?4)the value of the partial derivatives is given as,fxx(1,?4)=9fyy(1,?4)=3fxy(1,?4)=?4