The municipal government prescribed by this Charter shall be known as the “Council-manager government”. Pursuant to its provisions and subject only to the limitations imposed by the state of Texas constitution and by this Charter, all powers of the City shall be vested in an elective City Council hereinafter referred to as “the City Council”, which shall enact local legislation, adopt budgets, determine policies appoint the City Secretary, the City Attorney, the Judge of the Municipal Court, and employ the City Manager, who shall execute the laws and administer the government of the City. All powers of the City shall be exercised in the manner prescribed by this Charter, or if the manner be not prescribed, then in such manner as may be prescribed by ordinance.