A company is interested in knowing which the potential sales are next year if you use $ 20,000 in advertising expenses ...

     A company is interested in knowing which the potential   sales are 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         Develop   Regression graph for this problem.