You can
put this solution on YOUR website!This equation is a hyperbola in the form
(this hyperbola opens left/right).
The
foci for any hyperbola in the form
are (h+c,k) and (h-c,k) where
In this case,
,
,
(since
) and
(since
)
So
--->
--->
which means that
Now plug in the given h, k, and c values into (h+c,k) and (h-c,k) to get:
)
and
)
and simplify to get
)
and
)
So the foci are
and
Note: the foci approximate to (4.4722, 0) and (-4.4722, 0)
(