学习了轴对称、中心对称、平移、旋转等有关概念和性质,借助它们各自的特征来进行图形变换,是一类非常有趣的问题,下面我们一起来欣赏形形色色的图形变换。一、轴对称例1如图1,平面直角坐标系中有四个点,它们的横、纵坐标均为整数。若在此平面直角坐标系内移动点A,使得这四个点构成的四边形是轴对称图形,并且点A的横坐标仍是整数,则移动后点A的坐标为____。答案(-1,1),(-2,-2)。 Learning about the concepts and properties of axisymmetric, centrosymmetric, translational, rotational and so on, with their respective characteristics for graphical transformations, is a very interesting class of problems. Let’s take a look at a variety of graphical transformations. First, the axis of symmetry 1 Figure 1, Cartesian coordinate system has four points, their horizontal and vertical coordinates are integers. If the point A is moved within the plane rectangular coordinate system such that the quadrilateral formed by the four points is an axisymmetric figure and the abscissa of point A is still an integer, the coordinate of point A after movement is ____. The answer (-1,1), (-2, -2).