Q3 FA 1: Module 3 Topic A (Ben Franklin HS)

Last updated almost 5 years ago
10 questions
1

Match both types of INTEREST to the function that best models each one.

Draggable itemCorresponding Item

Linear Function
Simple Interest
Exponential Function
Compound Interest
Quadratic Function
1

Linear functions change by a constant percent rate.

2

a. Suppose $500 is invested at a bank that offers 4% simple interest. Write and evaluate an expression to determine the balance after 2 years.

b. Suppose $500 is invested at a bank that offerest 4% interest compounded annually. Write and evaluate an expression to determine the balance after 2 years.

2

Julio won a contest. His cash prize is given to him in the following way: One the first day, Julio receives $0.25. For each successive day, the amount of money Julio receives doubles.

a. Write an explicit formula to represent the money, f(d), in dollars Julio receives d days after the first day.

b. How much money will Julio receive on the 10th day?

1

1

1

Justify your response for parts (a) and (b) above.

1

Two nearby towns have experienced changes in their populations over the past several years.

Town A had a population of 15,000 residents in 2010, and the number has since decreased at a rate of 10% per year.

Town B had a population of 7,000 residents in 2010, and the number of residents has since increased at a rate of 400 people per year.

Complete the table and write an equation for both towns.

1

Match the Town with its correct function type.

Draggable itemCorresponding Item
Town A
Exponential Decay
Town B
Linear Growth

Linear Decrease

Exponential Growth
1

Explain your reasoning.