The following table defines snowfall as a function of elevation for a recent snowstorm in upstate New York: elevation: snowfall:
1000 4
2000 6
3000 9
4000 12

Enter the Data into your calculator and do a scatter plot. 2) Use your calculator to determine a line of regression for the data. Write it using function notation: 3) Determine f (2,500) and explain its practical meaning in this situation. 4) Determine f (-2000). Does this have any meaning in this context? 5) Does the graph pass the vertical line test for a function? 6) What is the domain of the function? 7) What is the range of the function?