A town has population 700 people at year t=0 . Write a formula for the population, P, in year t if the town:
(A) Grows by 45 people per year: P=
(D) Shrinks by 12 people per year: P=
A: P = 700 + 45t
D: P = 700 - 12t
these give the population at the end of year t
(A) To write a formula for the population, P, in year t if the town grows by 45 people per year, we can use the following formula:
P = 700 + 45t
Here, t represents the number of years since t=0 and P represents the population at year t.
(D) To write a formula for the population, P, in year t if the town shrinks by 12 people per year, we can use the following formula:
P = 700 - 12t
Again, t represents the number of years since t=0 and P represents the population at year t.