初中数学升学复习测试题精编──函数及其图象（一）一、填空题１．点（ａ，ｂ）关于ｘ轴对称的点的坐标是关于ｙ轴对称的点的坐标是；关于原点对称的点的坐标是２．点（ａ，ｂ）到ｘ轴的距离是；到ｙ轴的距离是；到原点的距离是３．边长为ａ的正方形，一个顶点在原点上，... Junior high school mathematics review review questions ─ ─ function and its image (a) a fill in the blank questions 1. The coordinate of the point (a, b) whose point is symmetrical about the x-axis is the coordinate of the point symmetrical about the y-axis; the point of the point symmetrical about the origin is 2. The distance from the point (a,b) to the x axis is; the distance from the y axis is; the distance from the origin is 3. A square with side length a, a vertex at the origin,...