Question

who knows what is the equation of directrix of an ellipse? both vertical and horizontal. for (x-h)^2/b^2+(y-k^2/a^2)=1 ???

Answer 1

fr vertical and hrizntal ellpse pleaaaaaaaaaaaase

Answer 2

since an ellipse has two focus points,
it will have two directrices also

Answer 3

do you knw what is the equation?

Answer 4

use that chart

Answer 5

thank you s much!!!!!!!!!!!!

Answer 6

np :)
that chart has everything you ever need.. when dealing wid ellipses

Answer 7

thank you very much and have a nice day!

Answer 8

for vertical ellipses :-

two directrix equations :

\(\large y = k+ \frac{a^2}{c}\)

\(\large y = k- \frac{a^2}{c}\)

Answer 9

ty :) you too have a great day !!