Question 80

The point P(a,b) is first reflected in origin to P1, and P1 is reflected in y-axis to (5,-4). The co-ordinates of point P are

Solution

P(a,b) after reflection at the origin = (-a,-b)

Reflection of point (-a,-b) in the y-axis is (a,-b)

According to ques,

=> $$(a,-b) = (5,-4)$$

=> $$a = 5$$ and $$-b = -4$$

$$\therefore$$ Coordinates of Point P = (5,4)

=> Ans - (C)

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