$\"\"$

Observe the table,

Substitute the values of $\"\"$ in the direct variation equation $\"\"$ to find a.

$\"\"$ .

The direct variation equation that relates x and y is $\"\"$ .

To check the equation is direct variation, substitute the all values for x in the equation $\"\"$ to obtain random y - values of table.

If $\"\"$ then $\"\"$ (This is true statement).

The all values for x the equation is true. Therefore the table represents direct variation. $\"\"$

The table represents direct variation and the direct variation equation is $\"\"$ .