I've tried solving this so many times i don't understand!

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

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

(-y to the power of 2 - 4y- to the power of 2 -6 y +3)