← 指数增长・衰减与复利 · 题库挑战

ONE QUESTION, ONE STEP

ZX-7669264B13

Nonlinear functions · 第 19 题

Nonlinear functions · 原库模块 1 · Q19 原库参考解析

The population P of a certain city y years after the last census is modeled by the equation below, where r is a constant and P0 is the population when y = 0.
P = P0(1+ r )y
If during this time the population of the city decreases by a fixed percent each year, which of the following must be true?
选择答案