(10 pts) Let f(x, y) = e2x+3y'5. (a) (2 pts) Find Vf(4, 1). (b) (4 pts) Find the directional derivative of f(x, y) at (4, 1) in the direction of the vector v = (5, 2). (c) (2 pts) Find the direction in which f(x, y) decreases most rapidly at (4, 1). (d) (2 pts) Find the minimum value of the directional derivative of f(x, y) at (4, 1). Are you ready to continue to the next question? Click "Yes" when you are ready to move on. You will be able to return to this question later if needed. Select one: YES No