Question

The sales at a particular bookstore grew from $2006 million in 2000 to $3803 million in 2005. Find an exponential function to model the sales as a function of years since 2000. Give your answer using the form B = Boat..

Answer 1

Yes initial amount is 2044 (in millions) 

Since the function is from 2000 then you can set it up as 
B(t)=2044*a^t 

To solve for "a" use the second number given, 3846, and since this value is 5 years after 2000 t=5 
so we plug in these values 
3846=2044*a^5 

we now solve for a 

first, divide by 2044 
3846/2044=a^5 

next, we take the 5th root 
5sqrt(3846/2044) = a 

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