Since x can be any value as long as the denominator equals 0 (it doesn't matter if it's positive or negative), we have to figure out when x^2=0, which is when x=0. Therefore, the domain is (-inf, 0) U (0, inf)
First you'll need to understad what Perpendicular Bisector Theorem is:
The Perpendicular Bisector Theorem states that a point is on the perpendicular bisector of a segment if and only if it is equidistant from the endpoints of the segment.
so X=45 degrees
and Y= 90 degrees
I'm not sure about X
but I hope this helps
:D
From Kenny
A²=25 then a = + 5 & a =-5, so this ellipse intercepts the x axis at the points +5 & -5