The standard form of hyperbola with horizontal transverse axis is
.
Where,
\
Center : 
Vertices : 
Foci : 
Transverse axis : 
Conjugate axis : 
Eccentricity : 
Asymptotes : 
Let the center of the hyperbola is
.
The distance between the foci of a hyperbola is equal to
.
The length of the transverse axis is equal to
.
So, if the distance between the foci is twice the length of the transverse axis,
or
.
Substitute
in
.

Let
.

Substitute the values
,
, and
in standard form of hyperbola.

.
One equation for a hyperbola in which the distance between the foci is twice the length of the transverse axis is
.