Assertion: parabola | /r/HasAspect | an axis of symmetry
Facets:
Source sentences:
text: All parabolas have an axis of symmetry and the point at which the axis of symmetry intersects the parabola is called the vertex of the parabola and the vertex lies half way between the focus and the directrix.
text: A parabola has one axis of symmetry.
text: Every parabola has an axis of symmetry and, as the graph shows, the graph to either side of the axis of symmetry is a mirror image of the other side.