Exponential Growth or Decay Word Problems Quiz

Identify whether the following scenario represents exponential growth or decay: The value of a car decreases by 15% each year.

• Decay

• Stagnation

• Growth

• Increase

Tags

CCSS.HSF-IF.C.8B

Solve the exponential growth or decay word problem: A bacteria culture doubles in size every 3 hours. If there are initially 100 bacteria, how many will there be after 12 hours?

• 800

• 500

• 200

• 1600

Tags

CCSS.HSF.LE.A.4

Solve the exponential growth or decay word problem: A radioactive substance decays at a rate of 8% per day. If there are initially 500 grams, how much will be left after 2 weeks?

• 150 grams

• 300 grams

• 1000 grams

• 209.7152 grams

Apply the exponential growth or decay formula to calculate the final amount: Initial amount = 200, growth/decay rate = 5%, time = 8 years

• 320.45

• 180.25

• 150.00

• 268.78

Tags

CCSS.HSF-LE.A.1A

Apply the exponential growth or decay formula to calculate the final amount: Initial amount = 500, growth/decay rate = -10%, time = 6 months

• 450.45

• 550

• 475

• 400

Tags

CCSS.HSF-LE.A.1A

Interpret the real-world scenario using exponential growth or decay: The value of an investment increases by 6% annually. How much will a $1000 investment be worth after 10 years?

• The investment will be worth $1060 after 10 years.

• The investment will be worth $1200 after 10 years.

• The investment will be worth $1500 after 10 years.

• The investment will be worth $1790.85 after 10 years.

Interpret the real-world scenario using exponential growth or decay: The population of a town decreases by 2% each year. If the current population is 5000, how many people will be there after 15 years?

• After 15 years, there will be approximately 7000 people in the town.

• After 15 years, there will be approximately 5500 people in the town.

• After 15 years, there will be approximately 4500 people in the town.

• After 15 years, there will be approximately 3118 people in the town.

Solve the exponential growth or decay word problem: A virus triples in size every 2 days. If there are initially 50 viruses, how many will there be after 8 days?

• 1200

• 1350

• 1500

• 4050

Apply the exponential growth or decay formula to calculate the final amount: Initial amount = 1000, growth/decay rate = 7%, time = 5 years

• 1400

• 1500

• 1600

• 1402.55

Tags

CCSS.HSF-LE.A.1A

Interpret the real-world scenario using exponential growth or decay: The value of a house increases by 3% annually. How much will a $200,000 house be worth after 15 years?

• The house will be worth $250,000 after 15 years.

• The house will be worth $270,000 after 15 years.

• The house will be worth $300,000 after 15 years.

• The house will be worth $270,370.01 after 15 years.