Mathematics
Find the image of each of the following points when reflected in the origin :
(i) (-5, 8)
(ii) (-6, -4)
(iii) (7, 4)
(iv) (9, 0)
(v) (0, 7)
Reflection
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Answer
(i) We know that,
Rule to find reflection of a point in origin :
When a point is reflected in the origin, sign of the x-coordinate and y-coordinate both changes.
∴ Point (5, -8) is the image on reflection.
Hence, (5, -8) is the image of the point (-5, 8) on reflection in origin.
(ii) We know that,
Rule to find reflection of a point in origin :
When a point is reflected in the origin, sign of the x-coordinate and y-coordinate both changes.
∴ Point (6, 4) is the image on reflection.
Hence, (6, 4) is the image of the point (-6, -4) on reflection in origin.
(iii) We know that,
Rule to find reflection of a point in origin :
When a point is reflected in the origin, sign of the x-coordinate and y-coordinate both changes.
∴ Point (-7, -4) is the image on reflection.
Hence, (-7, -4) is the image of the point (7, 4) on reflection in origin.
(iv) We know that,
Rule to find reflection of a point in origin :
When a point is reflected in the origin, sign of the x-coordinate and y-coordinate both changes.
∴ Point (-9, 0) is the image on reflection.
Hence, (-9, 0) is the image of the point (9, 0) on reflection in origin.
(v) We know that,
Rule to find reflection of a point in origin :
When a point is reflected in the origin, sign of the x-coordinate and y-coordinate both changes.
∴ Point (0, -7) is the image on reflection.
Hence, (0, -7) is the image of the point (0, 7) on reflection in origin.
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