# Question #f80c7

##### 1 Answer

Nov 6, 2017

#### Answer:

If the line is perpendicular, its slope should be

If the line is parallel, the slope should remain the same (ie. ** #y#-intercept should be different**.

#### Explanation:

Perpendicular lines have slopes that are the **negative reciprocal** of each other, and since the slope of

is

What do parallel lines mean? It means that they'll never touch. If two lines have **the same slope but different y-intercepts,** they will **never touch**. Just visualize it.

And, well, if the other line that you didn't specify meets none of the above criteria, then it is **neither**.

Hope this helps!

Best wishes,

A fellow highschool student.