Question

The population of a city in 2009 was 34,000. By 2014, the city's population had grown to 46,400 people. Assume that the population of the city has grown linearly since 2009 and that it will continue to grow this way. What will the population be in 2019. Show your work.

Answer 1

In 2019, the population of the city will be 58,800.

From 2009 to 2014, the population increase by 12400 in 5 years. That is 2480 per year.

To go on to the year 2019, that is 5 more years from 2014.

We can write and evaluate the following expression to get 58,800.

46400 + 5(2480)