From 1986 to 2012, the number BB of federally insured banks could be approximated by B(t)=−324.8t+13709B(t)=-324.8t+13709 where t is the year and t=0 corresponds to 1986.How many federally insured banks were there in 1991?    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 13709 banks per year The number of banks increased by 12085 banks per year The number of banks increased by 13709 banks per year The number of banks decreased by 12085 banks per year The number of banks increased by 324.8 banks per year The number of banks decreased by 324.8 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 number of banks in 2012 The y-intercept is the number of banks in 1986 The y-intercept is the minimum number of banks allowed in the country The y-intercept is the number of banks in 1991 The y-intercept is the maximum number of banks allowed in the country

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A:

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Transformation of Graphs

The word ‘transformation’ means modification. Transformation of the graph of a function is a process by which we modify or change the original graph and make a new graph.

Exponential Functions

The exponential function is a type of mathematical function which is used in real-world contexts. It helps to find out the exponential decay model or exponential growth model, in mathematical models. In this topic, we will understand descriptive rules, concepts, structures, graphs, interpreter series, work formulas, and examples of functions involving exponents.