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.
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If is the original function, then to reflect through then we must have
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)