SOLUTION: To predict averge salary for 2005? 1991 $ 275000 and 2001 $1470,000 I also need to know the average salary for 2010? by using 2001 and 1991 amounts

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Question 187672: To predict averge salary for 2005? 1991 $ 275000 and 2001 $1470,000
I also need to know the average salary for 2010? by using 2001 and 1991 amounts
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
To predict average salary for 2005?
1991 $ 275000
2001 $1470,000
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You have two points: (0,275000) : (10,1470,000)
slope = (1470000-275000)/(10-1) = -142,222
Intercept: (0,275000)
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Equation:
salary = -142,222x + 275000 where x is the number of years after 1991
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I also need to know the average salary for 2010?
S(9) = -142,222*9 + 275,000 = $147,000.00
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Cheers,
Stan H.