Adiagonal shortcut across a rectangular lot is 130 feet long. the lot is 50 feet long. what is the other dimension of the lot

Which function is represented by the graph

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

7+(3n++8) what is the answer to this?