OG详解-OG6 数学1 Q9

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(0) is the value of P(t) when t = 0, it follows that P(0) = 1,800 means that the value of P(t) 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(0) = 1,800 in this    context is the estimated number of marine mammals in the area was 1,800 when the study began. Choice A is incorrect and may result from conceptual or calculation errors. Choice C is incorrect and may result from conceptual or calculation errors. Choice D is incorrect and may result from conceptual or calculation errors.