$\"\"$

The distance between two parallel lines $\"\"$ and $\"\"$ is $\"\"$ .

The parallel lines are $\"\"$ and $\"\"$ .

The parallel can be rewrite as $\"\"$ and $\"\"$ .

The distance between two parallel lines $\"\"$ and $\"\"$

is $\"\"$ .

Substitute $\"\"$ and $\"\"$ , in the above formula.

$\"\"$

$\"\"$ .

$\"\"$

The distance between two parallel lines is $\"\"$ units.