Practice Set 1 – Exponential Growth (1.6.1) - Exponential Growth and Decay

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9 questions

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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the initial amount in the formula $y = a(1 + r)^t$ when a town has 1,500 people growing at 3% per year?
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Look for the starting value, which is labeled as **a**.
Question 2.
If a tree grows by 10% each year from 5 meters, what is the initial height?
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What do we start measuring the growth from?
3Question 3.
Which of the following depicts exponential growth?
- a steady increase
- a doubling trend
- a linear drop
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Think of situations where quantities increase rapidly!
4Question 4.
True or False: Exponential decay reaches zero after a certain time.
- True
- False
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Reflect on the graph's behavior near the X axis.
Question 5.
A city’s population is 5,000 and increases by 12% a year. What will the population be in 10 years?
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Think carefully about applying the formula repeatedly!
Question 6.
A rare species of butterfly has 100 individuals and doubles every 15 days. How many will there be in 90 days?
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Count how many doubling periods fit in that time frame.

5 more questions in this section. Enroll free to practise them all.