(1) The articles of an authority shall be adopted and may be amended by an affirmative vote of a majority of the members serving on the governing body of the participating city and state agency.

  (2) Before the articles or amendments to the articles are adopted, the articles or amendments to the articles shall be published by the clerk of the city at least once in a newspaper generally circulated within the participating city.

  (3) The adoption of articles or amendments to the articles by the respective governing bodies shall be evidenced by an endorsement on the articles or amendments by the clerk or secretary of the governing bodies in a form substantially as follows:

   “These articles of incorporation (or amendments to the articles of incorporation) were adopted by an affirmative vote of a majority of the members serving on the governing body of __________, __________ at a meeting duly held on the _____ day of ________, A.D., _____.”

  (4) Upon adoption of the articles or amendments to the articles, a printed copy of the articles or the amended articles shall be filed with the secretary of state, the clerk of the city, and the secretary of the state commission.