If no protests or objections in writing have been delivered to the city clerk up to the hour set for the hearing thereon or if protests have been found by the city council to be insufficient to constitute a majority protest or if a majority protest is overruled or denied by a vote of four-fifths of the members of the city council, immediately thereupon the legislative body shall acquire jurisdiction to order to formation of the proposed maintenance benefit area or the change in geographical boundary area. Such action shall be taken by resolution adopted by the city council and said resolution shall specify the date upon which the maintenance benefit area so formed or changed shall commence to perform its function. (Prior code § 55.03.307)