please attempt both 2 a and b thank you

Q2. (a) A function on the x-y plane is defined by f (x, y) = x y-2) Find the direction of maximum increase of the function at the point P(2,3), and determine the rate of change of f in that direction. 4] Using the result from (i) or otherwise find the equation of the tangent to the level curve of f at the point P. A vector field is defined as v = [2xy + 7, Bx' +z, 28y+3xz] Find constants