## How do you write ordered pairs?

# How do you write ordered pairs?

## How do you write ordered pairs?

Ordered pairs are often used to represent two variables. When we write (x, y) = (7, – 2), we mean x = 7 and y = – 2. The number which corresponds to the value of x is called the x-coordinate and the number which corresponds to the value of y is called the y-coordinate.

**How does a ordered pair look like?**

Ordered pairs are sets of numbers used for plotting points. They are always written inside parentheses, and are separated by a comma. Ordered pairs are usually seen together with a four-quadrant graph (also called a coordinate plane). This is a grid that looks like graph paper on which two perpendicular lines cross.

### Is 2 2 an ordered pair?

Both the elements of an ordered pair can be the same, i.e., (2, 2), (5, 5). Two ordered pairs are equal if and only if the corresponding first components are equal and second components are equal. For example: 1.

**What is the first number in an ordered pair called?**

x-coordinate

Think How do we distinguish between the two number lines? Circle all of the numbers on the x-axis. Box all of the numbers on the y-axis. An ordered pair is a pair of numbers that describes the location of a point in the coordinate plane. The first number is called the x-coordinate.

#### How do you read ordered pairs?

An ordered pair tells you the location of a point by relating the point’s location along the x-axis (the first value of the ordered pair) and along the y-axis (the second value of the ordered pair). In an ordered pair, such as (x, y), the first value is called the x-coordinate and the second value is the y-coordinate.

**What do you call the first number in an ordered pair called?**

The order in which you write x- and y-coordinates in an ordered pair is very important. The x-coordinate always comes first, followed by the y-coordinate.

## What is the second number of an ordered pair called?

In an ordered pair, such as (x, y), the first value is called the x-coordinate and the second value is the y-coordinate. Note that the x-coordinate is listed before the y-coordinate. This number is the y-coordinate, the second number in the ordered pair.

**What is the special name for the coordinates 0 0 Where the lines intersect?**

Null Island is the name used to refer to the point on the Earth’s surface where the Prime Meridian and the Equator intersect, at zero degrees latitude and zero degrees longitude ( 0°N 0°E).

### Which is an example of an ordered pair?

Ordered Pairs An ordered pair is a pair of numbers in a specific order. For example, (1, 2) and (- 4, 12) are ordered pairs. The order of the two numbers is important: (1, 2) is not equivalent to (2, 1) — (1, 2)≠ (2, 1).

**How are ordered pairs written in a coordinate plane?**

Start at one point, follow the direction and write the ordered pair for the end point. There are two types, position and direction. Position is based on up, down, right and up.

#### Can a vector be written as an ordered pair?

Notice that we write vector d with a small arrow above it. This denotes that it is a vector. The ordered pair notation itself is not clearly a vector, but it turns out that ordered pairs generally are vectors. If we had drawn an arrow from the origin to point A, it would be a vector too.

**How are ordered pairs used in graphing equations?**

Ordered pairs are often used to represent two variables. When we write (x, y) = (7, – 2), we mean x = 7 and y = – 2. The number which corresponds to the value of x is called the x-coordinate and the number which corresponds to the value of y is called the y-coordinate.