# How do you find the slope perpendicular to #7x+2y=0#?

##### 3 Answers

#### Answer:

By expressing this in the form

#### Explanation:

Firstly, let's transform

You might know, that to find a perpendicular line to any line you just have to find

If you don't know why, tell me in the comments and I'll do my best explaining it.

#### Answer:

The perpedicular is

#### Explanation:

The given line has a slope equal to

Or if you will: For each 7 units x increases, y decreases 2 units.

The perpendicular, therefore, will have that for each 2 units x increases, y increases 7 units.

Therefore:

If you look at the graphs, I think you can see how this must be so.

I, therefore, leave the actual proof to you. (Look at the angles of the two graphs relative to the two axes.)

#### Answer:

The slope perpendicular to

#### Explanation:

First, I would rewrite the equation