Solution
directrix
Solution
Solution steps
Rewrite in the standard form
Parabola is symmetric around the x-axis and so the directrix is a line parallel to the y-axis, a distance from the center x-coordinate
Refine
Graph
Popular Examples
directrix y=4x^2+8x-20directrix 2x^2-4x+15directrix y=-1/8 x^2directrix x^2=-20ydirectrix y=3x^2-2x-6
Frequently Asked Questions (FAQ)
What is the directrix y^2+4x-8y+12=0 ?
The directrix y^2+4x-8y+12=0 is x=2