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歡迎您訪問數(shù)學(xué)考題練習(xí):一個運動員打高爾夫球,若球的飛行高度y(m)與!

數(shù)學(xué)考題練習(xí):一個運動員打高爾夫球,若球的飛行高度y(m)與

更新時間:2024-01-12 16:35:38作者:貝語網(wǎng)校

一個運動員打高爾夫球,若球的飛行高度y(m)與水平距離x(m)之間的函數(shù)表達(dá)式為,y=-(x-25)2+12則高爾夫球在飛行過程中的最大高度為________.

試題答案

12m

試題解析

因為題中所給解析式就是頂點式,所以直接可以看出結(jié)果.

解答:由題意得,在y=-(x-25)2+12中,

當(dāng)x=25時,y取得最大值為12.

點評:本題涉及二次函數(shù)的實際應(yīng)用,難度中等.

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