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2025年6月美国B卷 · 第 14 题

2025年6月美国B卷 · 原库模块 2 · Q14 原库参考解析

The function \( f \) is defined by \( f(x)=-39^x \). The function g is a decreasing linear function. In the xy-plane, the graphs of \( y=f(x) \) and \( y=g(x) \)  intersect at two points, \( (h,\ j) \) and\( (k,\ m) \), where  \( j>m \). When \( g(x)<f(x) \), which of the following must also be true?
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