$\"\"$

The equation is $\"\"$ .

Rewrite the equation $\"\"$ in the form $\"\"$ by solving for y.

Subtract 8x from each side.

$\"\"$

Divide each side 2.

$\"\"$

The equation $\"\"$ can be rewritten in the form $\"\"$ , so it represents a direct variation.

The constant of variation $\"\"$ . $\"\"$

The equation $\"\"$ represents a direct variation and the constant of variation $\"\"$ .