# How do you write an equation of a line Perpendicular to x=5 passing through P(-3,-2)?

Jun 18, 2015

$y = - 2$

#### Explanation:

$x = 5$ is a vertical line.
So any line perpendicular to it is horizontal;
that is, it has the form $y = k$ for some constant $k$

Since the desired line goes through $\left(- 3 , - 2\right)$
the y-coordinate is $\left(- 2\right)$
and
the equation is $y = \left(- 2\right)$