论文部分内容阅读
一次函数的动态问题涉及平移、旋转和动点等.这三类问题因为形式多变、综合性较强,所以解题时容易出错.下面,我们将通过几个典型例题,感受一下这几类问题的解题思路.一、平移所谓平移变换,就是在平面内,将一个图形整体沿某一个方向移动一定的距离.经过平移后的图形与原来的图形相比,大小、形状不变,只是位置发生了变化.点P(x,y)的平移规律如下:
The dynamic function of the first-order function involves translation, rotation and moving point, etc. These three types of problems are prone to error when solving problems due to their varied forms and comprehensiveness. Below, we will take a look at several typical examples to find out the types of problems First, the translation of the so-called translation transformation, is in the plane, the overall movement of a graphic along a certain direction a certain distance. After the translation of the graphics and the original graphics, the size and shape unchanged, but The position has changed.The point P (x, y) translation rules are as follows: