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本文列举08年四则中考试题,它们是以体育运动为背景的抛物线问题.例1如图1,一名男生推铅球,铅球行进高度y(单位:m)与水平距离x(单位:m)之间的关系是
This article lists four mid-term exam questions in 2008. They are parabolic problems with sports as background. Example 1 In Figure 1, a guy pushes a shot put, shot height y (unit: m) and horizontal distance x (unit: m) The relationship between