Problem 22 of 7
Write the coordinate rule for reflecting over the line y=10.
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apply sign changes to coordinates.
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Reflection line must be horizontal or vertical.
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Solution
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1. Identify whether the reflection line is horizontal or vertical.
2. Keep the coordinate along the line direction unchanged.
3. Map the perpendicular coordinate the same distance to the other side.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Changing the coordinate parallel to the reflection line.