Question

What are the directrices of the hyperbola given by the equation y^2/49-x^2/9=1

Answer 1

i am confused because so far as i know a hyperbola does not have a directrix

Answer 2

it does have two asymptotes however
the asymptotes for
\[\frac{y^2}{a^2}-\frac{x^2}{b^2}=1\] are\[y=\pm\frac{a}{b}x\]

Answer 3

Thank you, that equation actually helps!

Answer 4

yw