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Find all points (x,y) where f(x,y) has a possible relative maximum or minimum. Then use the second derivative test to determine, if possible, the nature of f(x,y) at each of these points. If the second derivative test is inconclusive, so state. f(x,y) = x5 -y" -48x + 8y Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The point(s) where f(x,y) has a possible relative maximum or minimum is/are (Type an ordered pair. Use a comma to separate answers as needed.) O B. There is no possible relative maximum or minimum.x2 4 X2 - 4 x _ 2 . {a} Calculate x} for each value 01 x in the {allowing table. {tr} Make a conjecture about 1119 value of lirn ' xr2 Let x} = {a} Calculate x) for each value oi x in the following table. (Type an integer or decimal rounded to four decimal places as needed.)