A population grows exponentially at a constant rate from to in years. What is the yearly growth factor?
Answer and explanation
Correct answer: B.
- Step 1: We need , so . Step 2. Since , (the population doubles each year). **Answer: . Why not the others:** is the factor over two years, is not a factor that gives 400 after two steps (), and is the percentage increase over one year read as a factor.
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