Texas Business Organizations Code - BUS ORG § 22.159. Quorum of Members

(a) Unless otherwise provided by the certificate of formation or bylaws of a corporation, members of the corporation holding one-tenth of the votes entitled to be cast, in person or by proxy, constitute a quorum.

(b) The vote of the majority of the votes entitled to be cast by the members present or represented by proxy at a meeting at which a quorum is present is the act of the members meeting, unless the vote of a greater number is required by law or the certificate of formation or bylaws.

(c) Unless otherwise provided by the certificate of formation or bylaws, a church incorporated before May 12, 1959, is considered to have provided in the certificate of formation or bylaws that members present at a meeting for which notice has been given constitute a quorum.