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Question

Write the reflection of the following points with respect to origin.
  1. ( 2 , 3 )
  2. ( -4 , -2 )
  3. ( 4 , -3 )
  4. ( -4 , 9 ) [3 Marks]

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Solution

When a point is reflected in the origin, the sign of its abscissa and ordinate both changes. [1 Mark]

Reflection of following points with respect to origin are,
  1. ( 2 , 3 ) --- ( -2 , -3 ) [0.5 Mark]
  2. ( -4 , -2 ) --- ( 4 , 2 ) [0.5 Mark]
  3. ( 4 , -3 ) --- (-4 , 3 ) [0.5 Mark]
  4. ( -4 , 9 ) --- ( 4 , -9 ) [0.5 Mark]

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