What is the slope of a line perpendicular to the line whose equation is x+y=5

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

What is the solution of the equation? 35√(x+2)3+3=27

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