- S5 LocusLocus of a moving point and a fixed point and a fixed lineLocus of a moving point and two intersecting linesLocus of a moving point and two parallel linesLocus of a moving point and a line segmentLocus of a moving point and a lineLocus of a moving point and two fixed pointsLocus of a moving point and a fixed pointLocus 8: Constant Area of triangle PABLocus of P Such That AP + BP is a Constantlocus of two perpendicular line segments