From 1985 to 2007, the number BB of federally insured banks could be approximated by B(t)=323t+13785B(t)=-323t+13785 where t is the year and t=0 corresponds to 1985. Find the slope of the graph of B. Interpret this slope as a rate of change. Choose the correct answer below.

• The number of banks decreased by 13785 banks per year
• The number of banks increased by 13785 banks per year
• The number of banks decreased by -323 banks per year
• The number of banks increased by -323 banks per year
• The number of banks decreased by 323 banks per year
• The number of banks increased by 323 banks per year

Find the y-intercept of the graph of B. The y-intercept is Interpret the y-intercept. Choose the correct answer below.

• The y-intercept is the minimum number of banks allowed in the country
• The y-intercept is the maximum number of banks allowed in the country
• The y-intercept is the number of banks in 1990
• The y-intercept is the number of banks in 2007
• The y-intercept is the number of banks in 1985