each side of a square is 3 inches long. A student increases the length of each side by 3 inches. the area of the new square is how many times the area of the original square.​

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