Question

a city has a population of 7000.
its population is decreasing at a rate of 3.1%.
this scenario can be represented by which of the following exponential functions
f(x) =
7000(0.969)
7000(1.012)
7000(1.014)
7000(0.9875)
1.75(1 + 0.028)
7000(1 - 0.0175)

5 fill in the
a city h
its pop
this sc
f(x) = choose your answer...
a city h
its pop of 2.8%.
this scenario can be represented by which of the following exponential functions?
f(x) = choose your answer...

Explanation:

Step1: Calculate decay factor

The decay rate is 3.1% = 0.031. The decay factor is $1 - 0.031 = 0.969$.

Step2: Form exponential decay function

The initial population is 7000, so the function is $f(x) = 7000(0.969)^x$.

Answer:

7000(0.969)