2025年8月国际A卷 · 第 8 题

2025年8月国际A卷 · 原库模块 1 · Q8 原库参考解析

A bank account was opened with an initial deposit. Over the next several months, regular deposits were made into this account, and there were no withdrawals made during this time. The graph of the function \( f \) shown, where \( y=f(x) \), estimates the account balance, in dollars, in this bank account x months since the initial deposit. To the nearest whole dollar, what is the amount of the initial deposit estimated by the graph?