(x^2)/25 - (y^2)/(b^2)=1

Find the directrices, foci, and eccentricity of hyperobola????

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- May 9th 2012, 07:21 AMaab300Hyperbola Problem
(x^2)/25 - (y^2)/(b^2)=1

Find the directrices, foci, and eccentricity of hyperobola???? - May 9th 2012, 12:37 PMearbothRe: Hyperbola Problem
It would be much easier for us to

**help**you if you have shown some work, because this question is quite straight forward.

Your equation describes a family of hyperbolae with the properties:

Thus the foci have the coordinates:

The numerical eccenticity is

and therefore the equation of the directrice is

Since