Suppose there are 150 people living in a small town and the rate of change of the town's population is -9 people per year. Which of the following must be true?
A) The town size is decreasing each year.
B) No children are born in the town each year.
C) 9 more people leave the town (move away or pass away) than join the town (move into or are born) each year.
D) No one moves into the town.

Question

Quizplus · Accepted Answer

The town's population is decreasing by 9 people per year, indicating that the town size is decreasing each year (A). This also means that 9 more people leave the town than join it each year (C).

Suppose There Are 150 People Living in a Small Town