Table of Contents

- 1 What is it called when a line goes on forever?
- 2 What is a line that never ends called?
- 3 What does it mean when there’s a line over a number?
- 4 What do you called to a subset of line consisting of an endpoint and all the points extending infinitely on one side of that endpoint?
- 5 Which subset of a line that extends in one direction?
- 6 What do you call a line with no ends?
- 7 Which is the correct way to name a line?

## What is it called when a line goes on forever?

A line segment can be very long, very short, or somewhere in between. The difference between a line and a line segment is that the line segment has two endpoints and a line goes on forever. A line segment is denoted by its two endpoints, as in . A ray has one endpoint and goes on forever in one direction.

### What is a line that never ends called?

What is a ray? A ray is a straight, infinite line: it never ends.

#### What does it mean when there’s a line over a number?

This is called bar notation. But using bar notation, you would say 1 / 7 = 0.142857 with a line over those numbers to show that they repeat over and over. You can use the bar notation over any number that repeats the same number or numbers again after the decimal point.

**What is a straight path that goes on forever in two directions called?**

A line is a straight path on a plane that extends forever in both directions with no endpoints. A line segment is part of a line that has two endpoints and is finite in length.

**What is a conjugate of an imaginary number?**

In mathematics, the complex conjugate of a complex number is the number with an equal real part and an imaginary part equal in magnitude but opposite in sign.

## What do you called to a subset of line consisting of an endpoint and all the points extending infinitely on one side of that endpoint?

ray

A ray is a part of a line that has one endpoint and goes on infinitely in only one direction. You cannot measure the length of a ray. A ray is named using its endpoint first, and then any other point on the ray (for example, →BA ).

### Which subset of a line that extends in one direction?

A Ray is part of a line that has a beginning point, and extends indefinitely to one direction.

#### What do you call a line with no ends?

A line has no ends ! Change the position of points A and B. Note that the line AB extends forever in both directions: When it does have ends it is called a ” Line Segment “.

**Why do we have to define the end of a line?**

Because when something has an end, we have to define where that end is. Example: in Geometry a Line has infinite length. A Line goes in both directions without end. When there is one end it is called a Ray, and when there are two ends it is called a Line Segment, but they need extra information to define where the ends are.

**What do you call a line that goes through J and K?**

There is a shortcut way of writing this: This is read as “line JK”. The two arrow heads indicate that this is a line which passes through J and K but goes on forever in both directions. By a single letter. The line above could also be called simply “y”. By convention, this is usually a single lower case (small) letter.

## Which is the correct way to name a line?

More commonly it is shown as a line with an arrow head on each end as shown below. The arrow heads mean that the line goes off to infinity in both directions. Lines are commonly named in two ways: By any two points on the line.