SOLUTION: The population of Johnstown is increasing linearly in time. In 2000, the population was 47. In 2006, it was 77. Let y be the populatiion and x be the year using 0 for the year 2

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: The population of Johnstown is increasing linearly in time. In 2000, the population was 47. In 2006, it was 77. Let y be the populatiion and x be the year using 0 for the year 2      Log On


   



Question 360577: The population of Johnstown is increasing linearly in time. In 2000, the population was 47. In 2006, it was 77. Let y be the populatiion and x be the year using 0 for the year 2000.
Write an equation representing this relationship.
Estimate the population in 2018.
Any advise is great appreciated!

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
The population of Johnstown is increasing linearly in time. In 2000, the population was 47. In 2006, it was 77. Let y be the populatiion and x be the year using 0 for the year 2000.
Write an equation representing this relationship.
Estimate the population in 2018.
...
y2000 47
y2006 77
...
increase per year = 30/6 = 5
...
y= 47+5x
...
y 2018
y=47+5*18
y=235+18
y=253
...
m.ananth@hotmail.ca