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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
If a tree worth $200 begins to decay at a rate of 10% annually, how much will it be worth after one year?
💡 Hint: Use the formula y = 200(1 - 0.10).
Question 2
Easy
A car valued at $15,000 depreciates 5% each year. What is its value after 1 year?
💡 Hint: Calculate the new value using y = a(1 - r).
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the formula for exponential decay?
- y = a(1 + r)^t
- y = a(1 - r)^t
- y = a^t
💡 Hint: Recall the formula we discussed in class.
Question 2
True or False: In exponential decay, the quantity goes to zero.
- True
- False
💡 Hint: Think about how exponential decay behaves graphically.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A company has 1000 units of a product remaining in stock, and it sells them at a rate of 15% per month. How many units will it have left after 6 months?
💡 Hint: Calculate this step-by-step for each month.
Question 2
A radioactive material has a half-life of 3 years. If we start with 80 grams, how much will remain after 9 years?
💡 Hint: Consider how many half-lives fit into 9 years.
Challenge and get performance evaluation