← 抛物线图象与二次建模 · 题库挑战

ONE QUESTION, ONE STEP

ZX-C8E2A276B0

2025年3月国际D卷练习 · 第 8 题

2025年3月国际D卷练习 · 原库模块 2 · Q8 原库参考解析

An object is launched from a height of 124 feet above the ground. A quadratic function \( f \)  models the height above the ground, in feet, of the object t seconds after it is launched. According to the model, 3 seconds after the object is launched, it reaches a maximum height of 268 feet above the ground. Which equation defines  ?
选择答案