$\"\"$

The two points are $\"\"$ and the slope is $\"\"$ .

Substitute the values of $\"\"$ in the slope formula $\"\"$ .

$\"\"$

$\"\"$ . $\"\"$

Multiply each side by $\"\"$ .

$\"\"$

Cancel common terms.

$\"\"$

Add 4 to each side.

$\"\"$

$\"\"$ . $\"\"$

The value of $\"\"$ .