ONE QUESTION, ONE STEP
ZX-CA96592A512024年3月D卷 · 第 20 题
2024年3月D卷 · 原库模块 2 · Q20 原库参考解析
The function \( f\left(x\right)=\frac{7}{8}\left(x-5\right)^2+7 \) predicts the speed \( f(x) \), in meters per second, of a bee flying \( x \) seconds after it takes off, where \( x \) > 0. Which of the following is the best interpretation of the vertex of the graph of y = \( f(x) \) in the xy-plane?
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解题思路
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