If you had been a member of the british house of commons in 1938, would you have voted for or against the munich agreement?

If you were in the House of Commons, you would have voted against it. Germany had already broken the Rhineland Demilitarization Treaty, and demanded the Austrian Anschluss, Germany demanding the Sudetenland was considered outrageous.  (However the U.K allowed it to hope that Germany would stop expanding)