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
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Popular Examples

directrix y=x^2-10x+25directrix directrix y=x^2+10x-96directrix directrix 4(x+2)^2+5directrix directrix 9y^2+12x=0directrix directrix 2y^2-16y+72=20xdirectrix

Frequently Asked Questions (FAQ)

  • What is the directrix-8(y-3)=(x+4)^2 ?

    The directrix-8(y-3)=(x+4)^2 is y=5