Exponential Functions Word Problems and Tables

You invested $400 into an account with 7.5% interest rate compounded monthly. Which equation can be used to calculate how much you will have in 7 years?

• $8,881.47

• $7,432.93

• $8,400

• $6,500

Daniel’s Print Shop purchased a new printer for $35,000. Each year it depreciates (loses value) at a rate of 5%.

Write the equation that represents the situation.

Write the equation using this format with no spaces:

y=a(b)^x

Cassandra bought an antique dresser for $500. The value of her dresser increases 6% annually.

What is the growth factor?

• 500

• 0.06

• 1.06

• 0.94

Cassandra bought an antique dresser for $500. The value of her dresser increases 6% annually.

Write the equation that represents the situation.

Write the equation using this format with no spaces:

y=a(b)^x

A zombie infection in Yonkers Public Schools grows by 15% per hour. The initial group of zombies was a group of 4 freshmen.

Write the equation that represents the situation.

Write the equation using this format with no spaces:

y=a(b)^x

A new IPhone costs $799 and is estimated to lose 25% of its value every six months after its purchase.

What is the growth factor?

A new IPhone costs $799 and is estimated to lose 25% of its value every six months after its purchase.

What is the value of the phone after 2 years?

What is the growth factor?

• $35,000

• 0.05

• 1.05

• 0.95

Cassandra bought an antique dresser for $500. The value of her dresser increases 6% annually.

What will be the value of the dresser at the end of 3 years?