MATH 100: Precalculus
Exponent Activity

Krystal starts a math tutoring business. Her first year she has 1 customer and earns $1000. In her second year, her customer refers a friend to the tutoring service; she has 2 customers and earns $2000. If Krystal can double her customer base and earnings every year, can she make a living doing this?

Bonus: find equations that describe the number of students Krystal has and the amount of money Krystal earns in a year.

Hint: Make a table showing Krystal's earnings each year. If you still can't answer the question, use your table to sketch the graph of her yearly earnings function.