The hyperbola vertices at and
and asymptote line at
The - coordinates of the focus and vertex are equal.
The standard form of the hyperbola has a horizontal transverse axis is .
Where, is the center.
is the distance between center and vertex.
is the distance between center and focus and
.
The center is the mid point point of vertices of the hyperbola.
\Center .
The distance between center and vertex is .
The extensions of the diagonals of the rectangle are the asymptotes of the hyperbola.
\Asymptotes of the hyperbola are .
Compare the asymptote with general form.
.
Substitute in
.
.
Substitute and
in
.
Substitute ,
and
in
.
.
Therefore, the equation of the hyperbola is .
The foci of the hyperbola is .
Substitute and
.
The foci is at and
.
Find the points to form a rectangle.
\,
,
and
.
Asymptotes are and
.
Graph :
\(1) Draw the coordinate plane.
\(2) Draw the equation of the hyperbola.
\(3) Plot the center, foci and vertices.
\(4) Form a rectangle containing the points ,
and
.
(5) Draw the asymptotes of the hyperbola.
\The equation of the hyperbola is .
Graph of the hyperbola :
\.