ONE QUESTION, ONE STEP
ZX-0C8B00EF552024年8月北美B卷 · 第 17 题
2024年8月北美B卷 · 原库模块 1 · Q17 原库参考解析
The equation \( y=-4.9\left(x-8.8\right)^2+11,900 \) gives the estimated height above ground, y, in meters, of a plane, where x is the number of seconds since it started a parabolic maneuver. If this equation is graphed in the xy-plane, which of the following is the best interpretation of the vertex of the graph?
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解题思路
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