Solution
directrix
Solution
Solution steps
Rewrite in the standard form
Parabola is symmetric around the y-axis and so the directrix is a line parallel to the x-axis, a distance from the center y-coordinate
Refine
Graph
Popular Examples
directrix x^2-6x+5y=34directrix y=(x-4)^2-9directrix F=(mv^2)/rdirectrix-x^2+6x+1directrix y=3x^2+1-(x+4)
Frequently Asked Questions (FAQ)
What is the directrix y=x^2-9x+20 ?
The directrix y=x^2-9x+20 is y=-1/2