Triangle ABC has coordinates A(1,4); B(3, -2); and C(4,2). Find the coordinates of the image A'B'C' after a reflection over the x-axis.

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Thank you for any answers. Please include steps so I can learn them for next time!

Answer 1

Hi Blurry, reflection over the x-axis results in the x-values remaining the same with the y-values multiplied by -1.

 

Point A(1,4) reflected over the x-axis becomes: A'(1, -4).

 

Point B(3, -2) reflected over the x-axis becomes: B'(3, 2).

 

Point C(4, 2) reflected over the x-axis becomes: C'(4, -2).

 

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