IXL | Coordinate plane review

What are the coordinates of point

)

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Learn with an example

question

What are the coordinates of point

)

key idea

The coordinate plane is formed by a horizontal number line called the

-axis

and a vertical number line called the

-axis

Each axis crosses the other at 0. The point where the axes meet is called the

origin.

An ordered pair

(

)

describes the location of a point on the coordinate plane. The first number is called the

-coordinate

and the second number is called the

-coordinate

position along the

-axis

position along the

-axis

solution

Find the

-coordinate.

Start at point A and move down until you reach the

-axis.

This position on the

-axis

is 2 units to the left of the origin. All

-coordinates

to the left of the origin are

negative.

So, the

-coordinate

of point A is

–

Find the

-coordinate.

Start at point A and move right until you reach the

-axis.

This position on the

-axis

is 1 unit above the origin. All

-coordinates

above the origin are

positive.

So, the

-coordinate

of point A is 1.

Write the coordinates.

Always write the

-coordinate

first and the

-coordinate

second.

The coordinates of point A are

(

–

)

Looking for more? Try these:

Lesson: Coordinate plane

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R.2Objects on a coordinate plane

Lesson: Coordinate plane

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