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3 cards from this section. Quick, good the night before a test.
Calculate the population of a town of 1000 people growing at 2% per year after 5 years.
Use the formula: `y = a(1 + r)^t`.
If a tree is currently 4 meters tall and grows by 3% per year, how tall will it be after 3 years?
Apply the exponential growth formula, `y = 4(1 + 0.03)^3`.
What is the general form of an exponential function?
Think about the variables involved!
When does exponential growth occur?
What happens to y as we increase x?
A certain species of fish triples in population every 4 years. If there are currently 100 fish, how many will there be in 16 years?
Remember to determine the number of cycles in 16 years.
You invest $1,000 in an account with an annual interest rate of 12%, compounded annually. What will your investment be worth after 10 years?
You need to apply the compounding formula for a decade.
6 more questions in this section. Enroll free to practise them all.
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