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

foci x^2=-16yfoci foci x^2foci foci ((x-3)^2)/5+((y-1)^2)/(15)=1foci foci (x^2)/(100)+(y^2)/(64)=1foci foci (x^2)/4+(y^2)/(16)=1foci

Frequently Asked Questions (FAQ)

  • What is the directrix (y-7)^2=-12(x+1) ?

    The directrix (y-7)^2=-12(x+1) is x=2