Defining a Coordinate System

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Overview

There are times when we need to read points on a coordinate plane.

What is a coordinate plane?

A coordinate plane is two number lines that intersect. The first number line is called the x-axis. It travels horizontally. The second number line is called the y-axis. It travels vertically. The number lines intersect at the origin.

How do you read a coordinate plane?

Each point on the plane is located with a set of coordinates called an ordered pair. The first number in the ordered pair tells you how far to travel across the x-axis from the origin. It’s called the x-coordinate. The second number tells you how far to travel up the y-axis from the x-coordinate. It’s called the y-coordinate.

Let’s give it a try.

Which ordered pair represents Point A on the coordinate plane below?

1. (5, 2)
2. (2, 5)

Step 1: Locate Point A

All of the points are labeled. We can see that Point A is red in the coordinate plane.

Step 2: Determine the x-coordinate

We know that the x-coordinate tells us how far to travel across the x-axis from the origin. So, we need to count how far Point A is from the origin.

Step 3: Determine the y-coordinate

We know that the y-coordinate tells us how far to travel up the y-axis from the x-axis. So, we need to count how far Point A is from 2 on the x-axis.

Step 4: Write the ordered pair

We know that the coordinates need to be presented in an ordered pair.

See Related Worksheets:
Following the Satellite Repair Alien
Worksheets
(0)
This little Alien just happens to be the best in the satellite repair business! Students can log her repairs b...
Mapping the Space Walk
Worksheets
(0)
Astronaut Sara is getting ready for a spacewalk. Can you help her finalize her coordinate plane map so she can...
Water-Gun Sam's Record Coordinates
Worksheets
(0)
Sam has the fastest water gun in the west. He wanted to plot his skills using coordinating plans. Help Sam rec...
The Great Space Race
Worksheets
(0)
Everyone's getting ready for the great space race! Record the locations of each star the racers must land on t...
Relevant Topics:

Share good content with friends and get 15% discount for 12-month subscription

Use the coordinate plane to answer this question.

Point A is on the __________.

1. origin
2. x-axis
3. y-axis
4. all of the above

Use the coordinate plane to answer this question.

Point B is on the __________.

1. origin
2. x-axis
3. y-axis
4. all of the above

Use the coordinate plane to answer this question.

Point C is on the __________.

1. origin
2. x-axis
3. y-axis
4. all of the above

Use the coordinate plane to answer this question.

What is the y-coordinate of the Point A?

1. 4
2. 2
3. 6

Use the coordinate plane to answer this question.

What is the x-coordinate of the Point A?

1. 4
2. 2
3. 6

See Related Worksheets:
Following the Satellite Repair Alien
Worksheets
(0)
This little Alien just happens to be the best in the satellite repair business! Students can log her repairs b...
Mapping the Space Walk
Worksheets
(0)
Astronaut Sara is getting ready for a spacewalk. Can you help her finalize her coordinate plane map so she can...
Water-Gun Sam's Record Coordinates
Worksheets
(0)
Sam has the fastest water gun in the west. He wanted to plot his skills using coordinating plans. Help Sam rec...