二次函数图象抛物线的应用较广泛,因此一些与抛物线有关的实际问题就成了考试的“热点”.本文试举两例说明.请看. 例1 公园要建造一个圆形的喷水池.在水池中央垂直于水面安装一个花形柱子OA,O恰在水面中心,OA=1.25米,安置在柱子顶端A处的喷头向外喷水,水流在各个方向上沿形状相同的抛物线路径落下,且在过OA的任一平面上抛物线路径 Quadratic function image parabola is widely used, so some practical problems related to parabola have become the “hot spots” of the exam. This article gives two examples. Please see. Example 1 The park is to build a circular fountain. The center of the pool is installed with a flower-shaped column OA perpendicular to the water surface. O is just in the center of the water surface. The OA is 1.25 meters. The sprinkler placed at the top A of the column is sprayed with water, and the water flow falls along the parabolic path of the same shape in all directions. Parabolic path on any plane passing through OA