The values are
when
.
Write an inverse variation equation:
\
(Inverse variation equation)
(Substitute
and
)
(Multiply:
)
The constant variation is
.
Therefore, the inverse variation equation is
(or)
.
The product of the
and
is
.
Make a table for different values of
.
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Undefined | \
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Observe the table:
\Since
is undefined when
, there is no point on the graph.
Graph:
\Graph the equation
.
Plot the points obtained in the table.
\
Observe the graph:
\There is no point on the graph when
.
So, the graph is a hyperbola.
\The inverse variation equation is
(or)
.
Graph of the equation
is

There is no point on the graph when
.
The graph is a hyperbola.