How do you find an equation of a line containing the point (-2, 2), and perpendicular to the line 2(y + 1) = x?
First we have to transform the given equation to form
Now we can write the equation of a line perpendicular to the given one.
Two lines are perpendicular if and only if product of their slopes is
So the line we are looking for has equation:
Now we have to calculate the value of
To do this we have to put the point's coordinates as
Finally the line perpendicular to