The line PQ whose equation is x−y=2 cuts the x-axis at P, and Q is (4,2). The line PQ is rotated about P through 450 in the anticlockwise direction. The equation of the line PQ in the new position is

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y=−2

y=2

x=2

x=−2

answer is C.

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Detailed Solution

Clearly, the equation of PQ in the new position is x=2.

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