Question

What is the Reflection (image) of a point?

Answer

Reflection (image) of a point:
$\begin{array}{cc}\left(\mathrm{i}\right)& x\mathrm{-axis}=\left(x,–y\right)\\ \left(\mathrm{ii}\right)& y\mathrm{-axis}=\left(–x,y\right)\\ \left(\mathrm{iii}\right)& \mathrm{origin}=\left(–x,–y\right)\\ \left(\mathrm{iv}\right)& \mathrm{line\; }y=x\→\left(x,y\right)\end{array}$

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