Mathematics
The co-ordinates of the image of the point (-6, 9) when reflected in y-axis followed by the reflection in x-axis is :
(-6, 9)
(6, 9)
(-6, -9)
(6, -9)
Reflection
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Answer
Given,
Let the point (-6, 9) be P.
We know that,
On reflecting in y-axis, the sign of x-co-ordinate changes.
Let on reflection in y-axis, P(-6, 9) becomes P'.
P(-6, 9) ⇒ P'(6, 9).
We know that,
On reflecting in x-axis the sign of y-co-ordinate changes.
Let on reflection in x-axis, P'(6, 9) becomes P".
P'(6, 9) ⇒ P"(6, -9).
Hence, Option 4 is the correct option.
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