The rate of change is +2
as an ordered pair it would be (1,-3),(2,-1)(3,1),(4,3)
Given:
In 2010, the population of a town = 2000
Every year, it increase by 1.5%
To find the equation P(t) which represents the population of this town t years from 2010.
Formula
If a be the original population of a town and it increases by b% every year, after t year the population will be

Now,
Taking, a =2000, b = 1.5 we get,

or, 
Hence,
The population of this town t years from 2010 P(t) =
, Option D.
Answer: F(x)=125x+2500
Hope this helps let me know if you need me to explain
Subtract that number down so its a