(1) Unless the articles of incorporation or the bylaws require a different number, a quorum of a board of directors consists of a majority of the number of directors prescribed by the articles of incorporation or the bylaws. Directors younger than 18 years of age may not be counted toward a quorum.
(2) The articles of incorporation may authorize a quorum of a board of directors to consist of less than a majority but no fewer than one-third of the prescribed number of directors determined under the articles of incorporation or the bylaws.
(3) If a quorum is present when a vote is taken, the affirmative vote of a majority of directors present is the act of the board of directors unless the articles of incorporation or the bylaws require the vote of a greater number of directors.
(4) A director of a corporation who is present at a meeting of the board of directors or a committee of the board of directors when corporate action is taken is deemed to have assented to the action taken unless:
(a) The director objects, at the beginning of the meeting or promptly upon his or her arrival, to holding the meeting or transacting specified affairs at the meeting; or
(b) The director votes against or abstains from the action taken.