Posted by **Tony** on Sunday, July 15, 2012 at 10:51am.

In 1983, the population of Functionville was 2560, and it tripled in 6 years.

a. Write an exponential model for the population of Functionville t years after 1983.

b. According to your model, it what year had the population grown to 7 times its size?

- Math -
**Steve**, Sunday, July 15, 2012 at 1:24pm
since it tripled in 6 years, ew have

P = 2560*3^(t/6) where t=years since 1983

now plug in P=7, get t, add 1983 and voila'

- Math -
**Steve**, Sunday, July 15, 2012 at 1:24pm
ahem. Plug in P=7*2560

- Math -
**Charlie**, Wednesday, July 24, 2013 at 12:01am
I'm on the same problem and I'm having trouble solving it, can you go into a bit more detail.

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