The US Congress passes a law that raises the excise tax on gasoline by $1 per gallon. What effect will this change have on the demand and supply of gasoline? What will happen to gasoline prices and quantity? Choose a market that maybe affected and pred

This is a discussion question NOT a paper. Must be 250 words. For Economics class.

The US Congress passes a law that raises the excise tax on gasoline by $1 per gallon.  What effect will this change have on the demand and supply of gasoline?  What will happen to gasoline prices and quantity?  Choose a market that maybe affected and predict long-term consequences.