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Math Help - Reflecting Graphs over Lines

  1. #1
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    Reflecting Graphs over Lines

    I was wondering what I would do to the equation of any graph if I wanted to reflect it over a line, say x=k.

    Merci
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  2. #2
    No one in Particular VonNemo19's Avatar
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    If y=f(x) is the original function, then to reflect through x=k then we must have y=f(-x-k)
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  3. #3
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    I always find it best to work with an examples.

    If you had a parabola y = x^2 reflected on x=2, substitute x for 4-x, so y = (4-x)^2
    If you had a line y=x reflected on x=2, same thing as about , so y = (4-x)

    Good luck!
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