- Long Answer Questions er Questions Find the linear approximation to the function f (x, y) = 31 + 3ry at the point (z, y) = (3, -3) L (2, y) = ab va a sin (a) (write the appropriate function of z and y ) Use this linear approximation to estimate f (3. -2.99) = Number (the numerical answer must be precise up to :0.001 ng functions, find the maximum and minimum values of the function on the