scollier160715 scollier160715

24-11-2018
Mathematics

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point P has cordinates -7,1. point p is the image after a reflection across the y axis. What are the cordinates of P

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jimrgrant1 jimrgrant1

24-11-2018

P' = (7, 1)

Under a reflection in the y-axis

a point (x, y ) → (- x, y ), hence

P(- 7, 1 ) → P'(7, 1 )

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