Assertion: parabola's line | /r/HasProperty | perpendicular
Facets:
value: to the directrix
type: OTHER
value: to the axis of symmetry
type: OTHER
value: to the transverse axis
type: OTHER
value: to the plane of the parabola
type: LOCATION
Source sentences:
text: The point F is in the (pink) plane of the parabola, and the line VF is perpendicular to the plane of the parabola. ^
text: If you look back at our graph with all the triangles, every point we selected on the parabola was connected to the directrix by a line that is perpendicular to the directrix.
text: A line that splits the parabola through the middle is known as the axis of symmetry; this line is also perpendicular to the directrix and passes through the focus.
text: Another line of symmetry is perpendicular to the transverse axis and is called the conjugate axis .
text: The directrix is an horizontal line; since this line is perpendicular to the axis of symmetry, then this must be a regular parabola, where the x part is squared.