April worked 19 hours more than Jeremy last month. If April worked 6 hours for every 4 hours that Jeremy worked, how many hoursbdid they each work?I NEED THIS ASP

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