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最近上了一节关于反比例函数图象的公开课,从备课、上课到课后反思,有了一些感悟,反比例函数的图象是非常美丽的曲线,利用这种美可以轻松解决许多相关的问题,在这里与大家分享.一、利用对称美解题我们知道反比例函数的图象是双曲线,它既是中心对称图形又是轴对称图形,坐标原点是对称中心,一三象限、二四象限的角平分线是对称轴.但我们平时在解题过程中,往往又抛弃了这些性质不用,把这些
Recently a section on the open-ended part of the inverse-proportion function image, from the lesson preparation, class to after-class reflection, with some insights, the image of the inverse function is a very beautiful curve, the use of this beauty can easily solve many related problems , Here to share with you. First, the use of Symmetry Solution Problem We know that the inverse function of the image is a hyperbola, it is both the center symmetry and axisymmetric graphics, the origin of coordinates is the center of symmetry, one or three quadrants, two quadrants quadrant The bisector of the angle is the axis of symmetry, but we often abandon these properties in solving problems,