Time for the LAST brainy of the day i think the is the hard qusten answer this and take you time is a jellyfish a producers, consumers, or decomposes.

Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x,y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis