Question 85289
2002, x = 5 $38

Use the points (1,23) and (5,38) to find the equation of the function that fits this data.
Now estimate the total revenue in the year 2008.
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slope = [38-23]/[5-1] = 15/4
If y=23 when x=1 and slope = 15/4, then:
23 = (15/4)1+b
b= (92-15)/4
b= 77/4
EQUATION:
Revenue = (15/4)(year) + 77/4
"year" for 2008 = 2002+6 = 5+6=11
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Revenue(11) =(15/4)*11 + 77/4
Revenue (2008) = 165/4 + 77/4 = 242/4 = $60.50
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Cheers,
Stan H.