i need help

Year 2011 2012 2013 2014 2015 Number of federal credit 4406 unions 4235 4072 3895 3729 (a) Find a linear model for these data with x = 11 corresponding to the year 2011. (b) Assuming the trend continues, estimate the number of federal credit unions in the year 2017. (a) The linear model for these data is y = ( - 169.4 ) x + (6269.6 ) (Round to the nearest tenth as needed.) (b) The estimated number of credit unions for the year 2017 is (Round to the nearest integer as needed.)