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-80)^2=-320(y-20)directrix y=x^2+7x+5directrix y=-10x^2directrix y=-2x^2-3directrix x^2-2x-4y+17=0
Frequently Asked Questions (FAQ)
What is the directrix (x+4)^2=-12(y-2) ?
The directrix (x+4)^2=-12(y-2) is y=5