Assertion: parabola's line | /r/HasProperty | fixed point
Facets:
Source sentences:
text: Glossary directrix a line perpendicular to the axis of symmetry of a parabola; a line such that the ratio of the distance between the points on the conic and the focus to the distance to the directrix is constant focus (of a parabola) a fixed point in the interior of a parabola that lies on the axis of symmetry latus rectum the line segment that passes through the focus of a parabola parallel to the directrix, with endpoints on the parabola parabola the set of all points ( x , y ) in a plane that are the same distance from a fixed line, called the directrix, and a fixed point (the focus) not on the directrix
text: A parabola is the set of points in the plane that lie equidistant from a fixed point, the focus, and a fixed line, the directrix.
text: A parabola is a curve where any point is at an equal distance from a fixed point (called the focus), and a fixed straight line (called the directrix).
text: We know this fixed line to be the directrix and the fixed point to be the focus.
text: The fixed line is the ‘directrix’ and the fixed point is the ‘focus’ {Fig.