Question

PLEASE HELP!! WILL GET BRAINIEST AND 30 POINTS


2005 - $2.27
2006 - $2.57
2007 - $2.80
2008 - $3.25
2009 - $2.35
2010 - $2.78
2011 - $3.52
2012 - $3.62
2013 - $3.51
2014 - $3.36
2015 - $2.43

c. 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?
Explain how you determined your answers.

Answer 1

check the changes each year: 
+0.30 
+0.23 
+0.45 
-0.90 
+0.37 
+0.74 
+0.10 
-0.11 
-0.15 
-0.93 

even without doing a regression, it is clear that no straight line can model this set of data with any real accuracy. 

But, I guess you can always plug in the data using your regression calculator to find the line of "best" fit. (see attachment).