PLEASE HELP WILL MARK BRAINLIEST!!!

the coordinates of the vertices after the given transformation are:
First, we can identify the original vertices, which are:
Now we apply a reflection across the x-axis, it will only change the sign of the y-component of each of the above points, then the coordinates of the vertices after the given transformation are:
If you want to learn more about transformations:
https://brainly.com/question/4289712
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