Mirror lines on coordinate grids are lines that create symmetrical halves of shapes, essential for reflecting points across different axes in a coordinate system.
Mirror lines on coordinate grids can be defined as lines that divide a shape or object into two symmetrical halves. In a coordinate grid, a mirror line could be a vertical, horizontal, or diagonal line of symmetry. For example, in a Cartesian coordinate system, reflection across the y-axis means that points on one side of the y-axis are mirrored across it.
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