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2023年11月A卷 · 第 20 题

2023年11月A卷 · 原库模块 2 · Q20 原库参考解析

The functions f and g are defined by the equations shown, where a and b are integer constants, a < b and b < 0. If y = f(x) and y = g(x) are graphed in the xy-plane, which of the following equations displays, as a constant or coefficient, the y-coordinate of the y-intercept of the graph of the corresponding function?
I. \( f\left(x\right)=a\left(4.2\right)^{x+b} \) 
II. \( g\left(x\right)=a\left(4.2\right)^x+b \) 
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