Please help me with this probability question.

What does the sign of the slope tell you about a line?

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

A10 inch cookie cake is divided into 8 slices. what is the area of 3 slices