User contributions
- 12:32, 31 January 2023 (diff | hist) . . (+11) . . N User:Szczesliwy (Created page with "This is me!") (current)
- 12:29, 4 November 2022 (diff | hist) . . (+101) . . N Directrix (Created page with "The directrix is perpendicular to the axis of symmetry of a parabola and does not touch the parabola.") (current)