$\"\"$

\

The direct variation formula is $\"\"$ .

\

$\"\"$ (Substitute $\"\"$ )

\

$\"\"$ (Multiply: $\"\"$ )

\

$\"\"$ (Divide each side by 4)

\

$\"\"$ (Cancel common terms)

\

$\"\"$ (Divide: $\"\"$ )

\

$\"\"$

\

The direct variation equation is $\"\"$ . $\"\"$

\

$\"\"$ (Substitute $\"\"$ )

\

$\"\"$ (Divide each side by negative 4)

\

$\"\"$ (Cancel common terms)

\

$\"\"$ (Divide: $\"\"$ )

\

$\"\"$

\

$\"\"$

\

The value of $\"\"$ .