Arectangle has a width of 5 yd and a length of 9 yd.
how does the area change when each dimension is multiplied by 4? the area is increased by a factor of 2.
the area is increased by a factor of 4.
the area is increased by a factor 8.
the area is increased by a factor 16.

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