The population growth of an animal species is described by $F(t)=700+70 \log _{3}(2 t+1)$ where $t$ is measured in months. Find the population of this species in an area 4 month(s) after the species is introduced.
A) 685
B) 1330
C) 430
D) 840

Question

Quizplus · Accepted Answer

To find the population 4 months after the species is introduced, substitute $t = 4$ into the given function: $F(4) = 700 + 70 \log_3(2(4) + 1) = 700 + 70 \log_3(9) = 700 + 70 \times 2 = 840.$

The Population Growth of an Animal Species Is Described By F(t)=700+70