Question

The human population of the earth can be modeled by p(T)=3.1(1.016)^t , where T represents the number of year since 1963 , and p(T) is measured in billions of people .

A. Is the human population increasing or decreasing?
B.how do you interpret the statement that P(55)=7.42?

Answer 1

• See below

Explanation:

Given function:

• p(t)=3.1(1.016)^t

The base of the growth rate is:

• 1.016 = 1 + 0.016

It represent a 1.6% of growth per year.

A.

• Increasing

B.

p(55) = 7.42 means:

• 55 years after 1963, in the year 2018, the population of Earth is 7.42 billions