Data Sufficiency (DS) | A line segment is drawn in the xy-coordinate plane with endpoints P(3,

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P could be on line AQ so slope zero or P could be on perpendicular bisector. Hence we can find it whatever it be.
Insuff

B

No direction no slope . Only one point cannot dictate the equation of line n
Insuff

C--- Eliminates the possibility of P on AQ. HENCE, C


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