$\"\"$

The point is $\"\"$ .

Draw coordinate plane and plot the point $\"\"$ .

The x - coordinate of the point on the blue line is $\"\"$ . This means that all points on the line have a x - coordinate of $\"\"$ . Therefore equation of the line is $\"\"$ .

The y - coordinate of the point on the red line is 4. This means that all points on the line have a y - coordinate of 4. Therefore equation of the line is $\"\"$ .

$\"graph$

Therefore the equation of horizontal line is $\"\"$ and the equation of vertical line is $\"\"$ . $\"\"$

The equation of horizontal line is $\"\"$ and the equation of vertical line is $\"\"$ .