ONE QUESTION, ONE STEP
ZX-DC45CD22912024年3月C卷练习 · 第 8 题
2024年3月C卷练习 · 原库模块 2 · Q8 原库参考解析
An object is kicked from a platform. The equation \( h=-4.9t^2+13t+15 \) represents this situation, where h is the height of the object above the ground, in meters, t seconds after it is kicked. Which number represents the height, in meters, from which the object was kicked?
参考答案：
解题思路
容易忽略的一步
