Practice problem
What is the directrix of the parabola x=y2+8y+10x=y^2+8y+10x=y2+8y+10?
x=−8.25x=-8.25x=−8.25
x=−6.25x=-6.25x=−6.25
x=−7.25x=-7.25x=−7.25
x=−5.25x=-5.25x=−5.25
Type a concept, like “slope” or “photosynthesis”.
