Can you do check my question

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asked Aug 5, 2023 181k views

1 Answer

Eltiare · Answer 1 · 2023-08-10T11:51:33+0000

It is important to know that the transformation rule for a reflection across y = -x is

$(x,y)\rightarrow(-y,-x)$

The transformation rule for a reflection across the x-axis is

$(x,y)\rightarrow(x,-y)$

So, if we combine both rules, we get the following

$(x,y)\rightarrow(-y,-x)\rightarrow(-y,x)$

This rule belongs to a counter-clockwise 90° rotation about the origin.