INSTRUCTIONS: ANSWER THE FOLLOWING QUESTION.

1.

DETAILS LARCALC11 13.6.026.MI. Use the gradient to find the directional derivative of the function at P in the direction of PQ. R(x, y) = 3x2 - y2 + 4, P(1, 1), Q(2, 2) 2. DETAILS LARCALC11 13.6.035. Find the gradient of the function at the given point. Function Point R( x, y, Z ) = Vx+yz+ zz (7, 5, 2) VA(7, 5, 2) = Find the maximum value of the directional derivative at the given point