# How do I find a perpendicular line to a vertical line graph eg: x=2?

##### 2 Answers

Jul 23, 2015

Since you didn't just ask for the slope, you would need to know the value of some point on the line; for example

#### Explanation:

All lines perpendicular to a vertical line are horizontal lines.

All horizontal lines have a slope of

Given that

if the line passes through

then the line must be

Jul 23, 2015

You have

#### Explanation:

Your equation represents a vertical line passing through