shigarakianddabisgf shigarakianddabisgf

17-07-2020
Mathematics

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If triangle ABC is reflected across the y-axis, what are the coordinates
of A'?
(4, -5)
(-5, 4)
(-4, 5)
(5, -4)

If triangle ABC is reflected across the yaxis what are the coordinates of A 4 5 5 4 4 5 5 4 class=

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jimthompson5910 jimthompson5910

17-07-2020

Answer: Second choice. (-5,4)

Point A is located at (5,4)

To reflect over the y axis, we flip the sign of the x coordinate while keeping the y coordinate the same. The rule is [tex](x,y) \to (-x,y)[/tex]

So we will have [tex](5,4) \to (-5,4)[/tex] as the location of A'

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