Solve the linear programming problem by the method of corners. Minimize C = 2x + 7y subject to 4x + y greaterthanorequalto 38 2x + y greaterthanorequalto 30 x + 3y greaterthanorequalto 30, x greaterthanorequalto 0, y greaterthanorequalto 0 The minimum is C = at (x, y) = (). Solve the linear programming problem by the method of corners.