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What is the average rate of change in the cost of gasoline from 2017 to 2019?

What is the average rate of change in the cost of gasoline from 2017 to 2019?

Answer

Solution: The average rate of change is calculated as the change in cost divided by the change in years.

  1. Cost in 2017: $2.42
  2. Cost in 2019: $2.60
  3. Change in cost: $2.60 - $2.42 = $0.18
  4. Change in years: 2019 - 2017 = 2 years
  5. Average rate of change: $0.18 / 2 = $0.09 per year

The average rate of change in the cost of gasoline from 2017 to 2019 is $0.09 per year.

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