Q10 Consider the function f(x, y) with values given by the following table: 1.0 1.1 2.0 3.65 4.11 2.1 3.52 3.84 10.1 Estimate the partial derivatives a f and a f at the point (x, y) = (1.0, 2.0). 10.2 Estimate the direction derivative of f at the point (1.0, 2.0) along the line with 0.6 direction vector (0.8 10.3 Estimate the direction vector in the xy-plane for the direction of steepest de- scent at (1.0, 2.0)