Algebra 1B: Exponential Functions Unit 2
Portfolio Problem
On January 1, 2010, Chessville has a population of 50,000 people. Chessville then enters a period of
population growth. Its population increases 7% each year. On the same day, Checkersville has a population
of 70,000 people. Checkersville starts to experience a population decline. Its population decreases 4% each
year. During what year will the population of Chessville first exceed that of Checkersville?
Making Sense of the Task (1 point): Interpret the concepts of the task and translate them into mathematics.
(RESTATE THE PROBLEM IN YOUR OWN WORDS). On what pages of your textbook can you find similar
problems?
Representing and Solving the Task/Communicating Reasoning:
1. Model the situation using two algebraic equations. Be sure to define your variables. (2 points).