SAT Question 2fec8bf4: Nonlinear Functions answer and explanation with Desmos solution

Choice B is correct. The function $P$ gives the estimated number of marine mammals in a certain area, where $t$ is the number of years since a study began. Since the value of $P\left(0\right)$ is the value of $P\left(t\right)$ when $t=0$, it follows that $P\left(0\right)=1,800$ means that the value of $P\left(t\right)$ is $1,800$ when $t=0$. Since $t$ is the number of years since the study began, it follows that $t=0$ is $0$ years since the study began, or when the study began. Therefore, the best interpretation of $P\left(0\right)=1,800$ in this context is the estimated number of marine mammals in the area was $1,800$ when the study began.