A company is interested in knowing which are the potential sales next year if you use $ 20,000 in advertising expenses. The company uses the information from previous years to make its sales forecast.
The data are:
Year Sales Advertising
$000 $ 000
1 15 2
2 25 3
3 45 3
4 95 5
5 130 8
6 180 9
7 240 12
8 300 14
Use the appropriate formula and presents all mathematical computation