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学习了平面直角坐标系的知识后,有时会遇到一类要求我们根据已知的若干点的坐标,确定另外的特定点的坐标问题.解答它们的关键在于认真观察已知的若干点的横坐标和纵坐标的特点,将隐含在其中的规律分别探索出来.例1如图,在平面直角坐标系上有点A(1,0),点A第一次跳动至点A1(-1,1),第二次向右跳动3个单位至点A2(2,1),第三
After learning the knowledge of the Cartesian coordinate system, we sometimes encounter a class of problems that require us to determine the coordinates of another particular point based on the known coordinates of several points. The key to answering them is to carefully observe the known points Coordinates and ordinate characteristics, will be implicit in which the law were explored.Example 1 As shown in the plane Cartesian coordinate system A (1,0) point A, the first beating point A to point A1 (-1, 1), the second right to beat 3 units to point A2 (2,1), the third