Question

What equation models the data? What are the domain and range of the equation? Do you think your equation is a good fit for the data?

2005 2.63
2006 3.26
2007 3.54
2008 3.769
2009 2.13
2010 2.956
2011 4.259
2012 4.16
2013 3.78
2014 3.99
2015 3.10

Answer 1

The values are given as
2005 2.63
2006 3.26
2007 3.54
2008 3.769
2009 2.13
2010 2.956
2011 4.259
2012 4.16
2013 3.78
2014 3.99
2015 3.10
where left side is the year (x) and right side is the value (y)

The smallest value of y is = 2.13; biggest value is = 4.259 (RANGE)
Domain is (2003 to 2015)

It seems that the equation will not be linear because as the year increases, the value of y is unstable.