From 1981 to 2007, the number B of federally insured banks could be approximated by B ( t ) = − 325.6 t + 13702 where t is the year and t=0 corresponds to 1981. Find the slope of the graph of B.
Interpret this slope as a rate of change. Choose the correct answer below.
A. The number of banks decreased by 13702 banks per year
BThe number of banks increased by 13702 banks per year
C The number of banks decreased by 12074 banks per year
D The number of banks increased by 325.6 banks per year
E The number of banks decreased by 325.6 banks per year
F The number of banks increased by 12074 banks per year

Find the y-intercept of the graph of B.
Interpret the y-intercept
Interpret the y-intercept. Choose the correct answer below.
AThe y-intercept is the number of banks in 1981
BThe y-intercept is the minimum number of banks allowed in the country
CThe y-intercept is the number of banks in 1986
DThe y-intercept is the number of banks in 2007
EThe y-intercept is the maximum number of banks allowed in the country