$\"\"$

The point is $\"\"$ and the equation of line is $\"\"$ .

The equation $\"\"$ is in the form $\"\"$ where m is slope and b is y - intercept.

Therefore slope of given line is $\"\"$ .

Because the slopes of perpendicular lines are negative reciprocals, the slope of perpendicular line through $\"\"$ is 2. $\"\"$

To find the y - intercept, substitute the values of $\"\"$ in the slope - intercept from of equation $\"\"$ and solve for b.

$\"\"$

Subtract 4 from each side.

$\"\"$

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

The y - intercept of perpendicular line is $\"\"$ .