Consider the following.

f(x, y) = x² ln(y), P(7, 1), u = ?

5

13

?i +

12

13

?j

(a)Find the gradient of f.

?f(x, y) =

(b)Evaluate the gradient at the point P.

?f(7, 1) =

(c)Find the rate of change of f at P in the direction of the vector u.

D_uf(7, 1) =

11. DETAILS SCALC9 14.6.010. Consider the following. 5 12 f(x, y) = x In(y), P(7,1), + j 13 13 (a) Find the gradient of f. vf(x, y) = (b) Evaluate the gradient at the point P. Vf(7, 1) = (c) Find the rate of change of f at P in the direction of the vector u. Duf(7, 1) =