# Creative Prompt #86: Lines

Note from the Management: Please comment on whether or not you would like to see this project continue and why. Thanks.

A representation of one line segment

Three lines — the red and blue lines have the same slope, while the red and green ones have same y-intercept.

In Euclidean geometry, a line is a straight curve. When geometry is used to model the real world, lines are used to represent straight objects with negligible width and height. Lines are an idealization of such objects and have no width or height at all and are usually considered to be infinitely long. Lines are a fundamental concept in some approaches to geometry such as Euclid’s, but in others such as analytic geometry and Tarski’s axioms they enter as derived notions defined in terms of more fundamental primitives such as points.

A line segment is a part of a line that is bounded by two distinct end points and contains every point on the line between its end points. Depending on how the line segment is defined, either of the two end points may or may not be part of the line segment. Two or more line segments may have some of the same relationships as lines, such as being parallel, intersecting, or skew.

Stand in line

Queue up

Nazca Lines

Laugh lines

United Van Lines

Flight lines

freight lines

Fault lines

Atomic Line List

Bus line

Some lines from Wordsworth:

```.... Are clad in one green hue, and lose themselves
'Mid groves and copses. Once again I see
These hedge-rows, hardly hedge-rows, little lines
Of sportive wood run wild: these pastoral farms, ....
```

Train line

Check in line

Reading Between the Lines

Fly Lines

Home Equity Lines of Credit

Product lines

Fabric lines

Coloring outside the lines

long lines

Paragraphs, lines and phrases

On the line

Walking the line

“I walk the line” by Johnny Cash

Subject line

T1 line

Life lines

Security line

Grocery line

50 Yard line

Goal line

Post the direct URL (link) where your drawing, doodle, artwork is posted (e.g. your blog, Flickr) in the comments area of this post. I would really like to keep all the artwork together and provide a way for others to see your work and/or your blog.

The Creative Prompt Project, also, has a Flickr group, which you can join to  post your responses. I created this spot so those of you without blogs and websites would have a place to post your responses.

A line of poetry

Opening lines

width of a line

Greyhound Bus Line

Norweigian Cruise Line

Zipline

Pick up Lines

Shipping Line

Tightrope

Safety lines

Slack lines