City a has a population of 1.8 x 10 (to the 8th power) city b has a population of 1.2 x 10 (to the 6th power) city c has a population of 2.4 x 10 (to the 6th power) put these in order from greatest to least

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