The coordinates of the point m (- 2,1) which is symmetric about the X axis are______ The position relationship between the line Mn and the x-axis is______ .

The coordinates of the point m (- 2,1) which is symmetric about the X axis are______ The position relationship between the line Mn and the x-axis is______ .

The coordinates of the point m (- 2,1) which is symmetrical about the X axis are (- 2, - 1). Because the abscissa is the same, the position relationship between the line Mn and the X axis is perpendicular to each other