Students investigate circles and compound locus. For this geometry lesson, students identify the distance from a point to a line. They use Cabri software to create lines and circles.

Students define the five rules of loci. In this geometry activity, students identify the locus of points that creates a circle. They calculate the distance from a fixed line and point.

Students review the definition of a parabola. They trace a parabola by locating points the same distance from a point as they are to a line. Students develop an equation for a parabola with its vertex at the origin. Students solve...