Table: vfl_1980_game_3
Columns: home_team
home_team_score
away_team
away_team_score
venue
crowd
date

Question: Where did fitzroy play as the home team?
SQL: SELECT "venue" FROM vfl_1980_game_3 WHERE "home_team" = 'fitzroy'

Question: Who was North Melbourne's home opponent?
SQL: SELECT "home_team" FROM vfl_1980_game_3 WHERE "away_team" = 'north melbourne'

Question: Where did Essendon play as the home team?
SQL: SELECT "venue" FROM vfl_1980_game_3 WHERE "home_team" = 'essendon'