ONE QUESTION, ONE STEP
ZX-E2D9F20925Nonlinear functions · 第 47 题
Nonlinear functions · 原库模块 1 · Q47 原库参考解析
h(x) =-16x2 + 100x +10
The quadratic function above models the height above the ground h, in feet, of a projectile x seconds after it had been launched vertically. If y = h(x) is graphed in the xy-plane, which of the following represents the real-life meaning of the positive x-intercept of the graph?
参考答案：
解题思路
容易忽略的一步
