Practice: Exponential Growth and Decay Models

A mathematical model predicts that the population of a country, 𝑦 million, will be given by the formula 𝑦=17.1(1.02), where 𝑥 is the number of years since 2015. Use this model to predict the population of the country, to the nearest million, in both 2021 and 2022.

  • A18 million, 19 million
  • B18 million, 20 million
  • C19 million, 20 million
  • D19 million, 21 million
  • E18 million, 21 million

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