Given 1 inch = 2.54 centimeters, enter the value that will complete this expression for converting 3.5 feet to centimeters. (What value goes where the ♣ is?)

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