Year 2011 2012 2013 2014 2015 Number of federal credit unions 4432 4260 4100 3925 3760 Find a linear model for these data with x=11 correspoding to the year 2011 a) The linear model for these data is...

Find a linear model for these data with x=11 correspoding to the year 2011

a) The linear model for these data is y=(   )x+(   )

b) assuming the trend continues, estimate the number of federal credit unions in the year 2018