6.2.4 math 9a.docx - 6.2.4Practice:Modeling: Exponential...

6.2.4Practice:Modeling: Exponential Functions
Practice Algebra I Sem 1
Points Possible: 20
Name:Jasmine Martinez
Date:12/18/2019
YOUR ASSIGNMENT: Valuable Coins
In this assignment, you may work alone, with a partner, or in a small group. Discuss the results
of your work and/or any lingering questions with your teacher.
Choosing a Valuable Coin
Alex collects coins that appreciate (increase in) value. At the store he has found three coins that
he likes and can afford. Help Alex decide which coin to buy by selecting two coins and
comparing their values over time.
1. Which two coins are you going to compare? Circle the two coins you picked.

Coin A Coin B Coin C
The two coins I chose are
Coin A and Coin B
Finding Equations for the Values
2. What are the current values and appreciation rates of the two coins you selected? ( 2 points: 1
point for each of 2 coins)
Coin Current Value Annual Appreciation Rate
B $40 5%
A $25 7%