Question

The population of a city in 2005 was 18000. By 2010 , the city’s population had grown to 32800 . If the population growth follows a linear model, what is the projected population for 2015?

Answer 1

I think the answer is 47600 because 32800-18000=14800 and 32800+14800+47600

Answer 2

The projected population for 2015 is 47600.

Explanation:

Population in the year 2005 = 18000

Population in the year of 2010 = 32800

Since Growth follow linear model means growth rate is constant

Increase in population 5 year .i.e, from 2005 to 2010 = 32800 - 18000 = 14800

So in next 5 year also population increases by 14800.

⇒ Population in year 2015 = 32800 + 14800 = 47600

Therefore, The projected population for 2015 is 47600.