Observe the figure :
\The transverse axis is parallel to the -axis.
The center of the axis is .
The asymptotes of the hyperbola are .
The vertices of the hyperbola are and
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The standard form of the equation is ..
Substiute the values in the standard form of the equation
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Asymptotes of the hyperbola are .
The asymptotes of the hyperbola are .
Therefore, .
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Substitute in equation of hyperbola. \ \
Substitute .
Substiute in
.
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The equation that represents the graph is .