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Question 1174385: A town's population has been growing linearly. In 2003 the population was 68,000. The population has been growing by 2200 people each year.
Write an equation for the population, P, x years after 2003.
Use the formula to find the population in 2009:
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39630)   (Show Source):
Answer by MathTherapy(10557)  (Show Source):
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A town's population has been growing linearly. In 2003 the population was 68,000. The population has been growing by 2200 people each year.
Write an equation for the population, P, x years after 2003.
Use the formula to find the population in 2009:
Rate of change/Slope: 2,200
y-intercept, with INITIAL year being 0, (0, 68,000)
Equation of a LINE: y = mx + b
Equation for the population, x years after INITIAL year/2003: 
Substitute 6 (2009 - 2003) for x to find population in 2009.
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