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March 3, 2015

March 3, 2015

Posted by **PJ** on Friday, November 7, 2008 at 7:01pm.

professional athlets in the year 1991 and 2001

Year Average Salary

1991 $252,000

2001 $1,350,000

a) Use the data points to find a linear function that fits the data.

b) Use the function to predict the average salary in 2005 and 2010.

A linear function that fits the data is S(x)=

- Algebra -
**Damon**, Friday, November 7, 2008 at 7:16pmslope = m = change in salary/change in year = (1350000-252000)/(2001-1991)

so

m = 109,800 dollars/year

so

salary =109,800 (year -1991) + 252,000

that is a linear function of year but if you want it in y = mx + b form then

salary = 109,800*year - 218,359,800

check 2001 back in

salary = 109,800*2001 - 218359800

= $1,350,000 check

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