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Mathematics 13 Online
OpenStudy (patrickweewoos):

Point D(−1, 5) is reflected across the x-axis. Which statements about D' are true? Select each correct answer. The y-coordinate is 5. The x-coordinate is −1. The y-coordinate is−5. The x-coordinate is 1.

OpenStudy (patrickweewoos):

@jim_thompson5910

jimthompson5910 (jim_thompson5910):

When you reflect a point across the x axis, the x coordinate stays the same. The y coordinate will flip from positive to negative or vice versa eg: (2,1) -----> (2,-1) (5,-10) ----> (5,10)

OpenStudy (patrickweewoos):

So it was (1,-5)?

OpenStudy (patrickweewoos):

@jim_thompson5910

jimthompson5910 (jim_thompson5910):

the x coordinate stays the same

OpenStudy (patrickweewoos):

ooooooooh. so the y coordinate changes to a -5?

jimthompson5910 (jim_thompson5910):

(-1,5) will become (-1,-5)

jimthompson5910 (jim_thompson5910):

`so the y coordinate changes to a -5?` yes

OpenStudy (patrickweewoos):

okay so the answers will be b and c?

jimthompson5910 (jim_thompson5910):

`okay so the answers will be b and c?` yes to both

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