When given that the attendance to Taylor Swift concerts had been decreasing at a rate of 2% from 2009-2013. If the average attendance at her concerts in 2013 was 20,480 what would be the attendance in 2009? Also, what would be the domain and range?

Answer 1

2009 20,480/.98^4
2010
2011
2012 20,480/.98
2013 20,480

20,480/.98^4 = 22,204

domain is 2009 to 2013 as far as we know and the range is 20,480 to 22,204