* Required If each person occupies 2.5 square feet, how many people would fill up an arena with standing room only that had a width of 1100 feet and a length of 2500 feet? 0 1,100,000 people O 6,875,000 people O 2,750,000 people 0 2,500,000 people

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