In what direction does the directional derivative for f(x, y) = x2y at (1, 1) have
A. Value 1?
B. Value -2?
C. Is there a direction for which the value is 4?
I'll be completely honest, I don't even know where to begin on this question, I have never seen a problem like it before therefore I come to you guys lost and looking for help, anything will be appreciated.