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geometry

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In the graph below, point D is reflected across the y-axis. What are the coordinates of it's image?
The graph looks like D is below the x-axis to the right 3 places from y-axis and down 1 place from x-axis.
So would my answer be (3,1)?

  • geometry -

    no, that would be its reflection across the x-axis.

    (3,-1) --> (-3,-1)

    think about folding the graph along the y-axis. The y-values don't change.

  • geometry -

    Thank you I see what I did wrong.

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