<P> We can solve this equation for x, </P> <Dl> <Dd> x = x 0 + m y 0 − m k m 2 + 1 . (\ displaystyle x = (\ frac (x_ (0) + my_ (0) - mk) (m ^ (2) + 1)).) </Dd> </Dl> <Dd> x = x 0 + m y 0 − m k m 2 + 1 . (\ displaystyle x = (\ frac (x_ (0) + my_ (0) - mk) (m ^ (2) + 1)).) </Dd> <P> The y coordinate of the point of intersection can be found by substituting this value of x into the equation of the original line, </P>

Perpendicular distance from a line to a point