ONE QUESTION, ONE STEP
ZX-75AAEC1812Nonlinear functions · 第 38 题
Nonlinear functions · 原库模块 1 · Q38 原库参考解析
The total distance d, in meters, traveled by an object moving in a straight line can be modeled by a quadratic function that is defined in terms of t, where t is the time in seconds. At a time of 10.0 seconds, the total distance traveled by the object is 50.0 meters, and at a time of 20.0 seconds, the total distance traveled by the object is 200.0 meters. If the object was at a distance of 0 meters when t = 0, then what is the total distance traveled, in meters, by the object after 30.0 seconds?
参考答案:
解题思路
容易忽略的一步
