“I need you to work for me for thirty days. You will work one hour per day. The
neat part is I am going to let you decide how you want to be paid. Firstly, if you
decide, I will pay you $1,000 per day. Your other option is to be paid one penny
on the first day, two pennies on the second day, four pennies on the third, and so
on, each day earning twice as many pennies as the day before.”

The url link leads to an input/output table with both the linear and exponential functions and a graph of both functions that teachers can share with students for further discussion.