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13 Nov 2019
Please assist
2. Let f(x, y) =xy + . x (a) Find Vf(xy) and Vf(-1,1) â½f(x,y)= Vf(-1,1 (b) Give the Cartesian equation of the tangent plane to the graph of f at the point where x =-1,y= 1. (c) Find the directional derivative of f at (-1,1) in the direction of the vector(-3,1) (d) In which direction will f decrease most rapidly at (-1,1)? Give the rate of decrease in this direction.
Please assist
2. Let f(x, y) =xy + . x (a) Find Vf(xy) and Vf(-1,1) â½f(x,y)= Vf(-1,1 (b) Give the Cartesian equation of the tangent plane to the graph of f at the point where x =-1,y= 1. (c) Find the directional derivative of f at (-1,1) in the direction of the vector(-3,1) (d) In which direction will f decrease most rapidly at (-1,1)? Give the rate of decrease in this direction.
Nestor RutherfordLv2
4 Jun 2019