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Sagot :
The reflection over the y-axis has a rule:
[tex] (x,y)\rightarrow (-x,y).[/tex]
From the diagram you can see that point W has coordinates (-7,2). Then using the rule given above, you can find the coordinates of point W':
[tex] (-7,2)\rightarrow (7,2).[/tex]
Answer: (7,2).
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