Question

Suppose the initial population of deer in a forest is 900 and is decreasing each year at a rate of approximately 3%

write an exponitanal equation that models this situation

How large will the deer population be after 8 years

Answer 1

The 3% decrease causes the population to be 1 - 0.03 = 0.97 of what it was the previous year.

f(x) = 900(0.97)^x

after 8 years, x = 8

f(8) = 900(0.97)^8
f(8) = 705 deer left