Exponential Growth Rate?

Mathematics
Tutor: None Selected Time limit: 1 Day

If an initial price increase of 1.75 led to 200,000 sales losses and a subsequent price increase of 1.10 led to 800,000 additional sales losses. How many sales losses would we see with a subsequent price increase of 4.90 if that growth rate kept on exponentially increasing like that? How do you figure that?

May 6th, 2015

use the function y=a b^x as the exponential function

x=1.75  ,y=200000

200000=ab^1.75

again
x=1.10     y=800000


800000=ab^1.10

solving this equation one can get a and b
and further solve for x=4.90
May 6th, 2015

I don't know how to do that

May 6th, 2015

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May 6th, 2015
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