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

Popular Examples

(x+92)^2+(y+54)^2=73x^2-4x+y^2-2y=-2(x^2)/4+(y^2)/(64)=1foci ((x-7)^2)/4+((y+3)^2)/(16)=1foci (x^2)/(64)+(y^2)/(100)=1

Frequently Asked Questions (FAQ)

  • What is the directrix y^2=-12x ?

    The directrix y^2=-12x is x=3