Find the relative maximum and minimum values. f(x , y) = x² + xy + y² - 16y + 85 Select the correct choice below and, if

Question

Find the relative maximum and minimum values.
f(x , y) = x² + xy + y² - 16y + 85

Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice.

(A)The function has a relative maximum value of f(x ,y) = __________   at (x ,y) = ____________

(B). The function has no relative maximum value.

Kunduz · Accepted Answer

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