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在解决图象问题时往往需要搞清图象的物理意义和图象中所给的隐含条件,找出必要的信息,图象问题才可得到突破。1图象与斜率在理解图象斜率时要搞清斜率是某点切线的斜率还是该点和原点边线的斜率。如在s-t图象中某点切线的斜率表示该时刻的瞬时速度,而该点与原点边线的斜率则表
When solving the image problem, it is often necessary to find out the physical meaning of the image and the implicit conditions given in the image to find out the necessary information. The image problem can only be broken. 1 Image and Slope To understand the slope of an image, you need to find out whether the slope is the slope of a certain point tangent or the slope of the point and the origin edge. For example, the slope of a tangent at a point in the s-t image indicates the instantaneous speed at that moment, and the slope of the point and the edge of the origin