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.

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y2000 47
y2006 77
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increase per year = 30/6 = 5
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y= 47+5x 
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y 2018
y=47+5*18
y=235+18
y=253 
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