What transformation has taken place ?

Reflection across the y-axis.

Step-by-step explanation:

Transformations

The image shows a graph with two shapes ABC and A'B'C'. The coordinates of the vertices of ABC are A(-2,4) B(-1,1) C(1,3).

The coordinates of the vertices of A'B'C' are A'(2,4) B'(1,1) C'(-1,3).

It's clear the points ABC and ABC have the same y-coordinate, but the x-coordinate is inverted, or changed signs.

The transformation that maps a point (x,y) to (-x,y) is a reflection across the y-axis.

is there any attachment? what are the equations?

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