How to Read Off the Cartesian Coordinates of a Point

Reading Off the Cartesian Coordinates of a Point

The Cartesian coordinates of a point can be read off from a graph.

How to Read Off the Cartesian Coordinates a Point

Reading off the Cartesian coordinates of a point is easy.

Question

What are the Cartesian coordinates of the point shown on the graph below.

Step-by-Step:

1

Read off how far across the point is along the horizontal x-axis.

We see that the point is 2 units along the x-axis.

2 is the x-coordinate of the point.

Note: The x-axis is labelled with numbers (0, 1, 2, 3...) so you can measure how far across the point is.

2

Read off how far up the point is along the vertical y-axis.

We see that the point is 4 units up the y-axis.

4 is the y-coordinate of the point.

Note: The y-axis is labelled with numbers (0, 1, 2, 3...) so you can measure how far up the point is.

3

Write down the Cartesian coordinates as a pair of numbers in brackets, separated by a comma.

The x-coordinate (2) found in Step 1 goes on the left.

The y-coordinate (4) found in Step 2 goes on the right.

Answer:

Slider

With practice, you'll be able to read off the Cartesian coordinates of a point from by eye.

The slider below gives another example of how to read off the Cartesian coordinates of a point on a graph.

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See Also

What are the parts of a graph? What is the x-axis? What is the y-axis? What is the origin?