Question 1129528
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he populations of Towns A, B, and C vary exponentially with respect to time. 
The population of Town A increases by 19% every 13 years. 
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{{{y=ab^x}}}

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if a = 1,
y=1.19 after 13 years.

{{{1.19=b^13}}}


{{{13*log((b))=log((1.19))}}}


{{{log((b))=0.005811}}}


{{{b=1.01347}}}


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{{{highlight_green(y=a(1.01347)^x)}}}


To answer the first question, for each one unit change of x, there is increase by 1.35% in y.