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reflections

When you reflect a point across the x-axis, the x-coordinate remains the same, but the y-coordinate is transformed into its opposite. When you reflect a point across the y-axis, the y-coordinate remains the same, but the x-coordinate is transformed into its opposite.

Good to know! When you reflect a point, line, or curve across a line, think of the line as serving as a mirror. Where would the reflection of each point be in the mirror?

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