What must a poem do to develop an extended metaphor? 1. Elaborate on how two mostly unlike things are alike.
2. Describe a topic in a way that shows key differences.
3. Use the words "like" and "as" throughout the poem.
4. Start with a sentence stating that one thing is another thing.

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.