The following table shows retail sales in drug stores in billions of dollars in the U.S. for years since 1995. Year Retail Sales 0 85.851 3 108.426 6 141.781 9 169.256 12 202.297 15 222.266 Let y be...

The following table shows retail sales in drug stores in billions of dollars in the U.S. for years since 1995.

Let y be the retails sales in billions of dollars in xx years since 1995. A linear model for the data is y=9.44x+84.182y=9.44x+84.182.


A) Use the above scatter plot to decide whether the line of best fit, fits the data well.

• a) The function is a good model for the data.


• or


• b) The function is not a good model for the data

1. B) To the nearest billion, estimate the retails sales in the U. S. in 2011.  __?__  billions of dollars.
   
   
   C) Use the equation to find the year in which retails sales will be $234 billion. __?__