The point (a, b) is first reflected in the origin and then reflected in the y-axis to P’. If P’ has co-ordinates (4, 6); evaluate a and b.

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1 Answers

MO (a, b) = (-a, -b) 

My (-a, -b) = (a, -b) 

Thus, we get the co-ordinates of the point P’ as (a, -b). It is given that the co-ordinates of P’ are (4, 6). 

On comparing the two points, we get, a = 4 and b = -6

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