# How to Draw a Point from Cartesian Coordinates (Mathematics Lesson)

# Drawing a Point from Cartesian Coordinates

A point can be drawn on a graph. The Cartesian coordinates of the point tell us where to draw the point on the graph.Imagine you wanted to draw a point with Cartesian coordinates

**(2, 4)**.

# How to Draw a Point from Cartesian Coordinates

Drawing a point from Cartesian coordinates is easy.Cartesian coordinates have 2 numbers.

- The number on the left (2) is called the x-coordinate. It tells you how far
**across**the point is (in the horizontal direction) by measuring how far along the x-axis it is. - The number on the right (4) is called the y-coordinate. It tells you how far
**up**the point is (in the vertical direction) by measuring how far up the y-axis it is.

#### An Example Question

Draw the point with Cartesian coordinates**(2, 4)**on a graph.

Step 1

**Don't forget:**A graph has a pair of axes: the horizontal axis is called the x-axis and the vertical axis is called the y-axis. They meet at the origin.

Step 2

**2**.

(

**2**,4)Step 3

**Step 2**(2).

Step 4

**4**.

(2,

**4**)Step 5

**Step 4**(4).

Step 6

# A Real Example of How to Draw a Point from Cartesian Coordinates

With practice, you'll be able to draw a point from Cartesian coordinates by eye.The slider below gives another example of how to draw a point on a graph from the point's Cartesian coordinates.

##### Interactive Test

**show**

Here's a second test on drawing a point from Cartesian coordinates.

Here's a third test on drawing a point from Cartesian coordinates.

# Positive and Negative Coordinates

The pair of numbers in Cartesian coordinates the can be positive and negative.- The x-axis is labelled with positive numbers to the right of the y-axis and negative numbers to the left.
- The y-axis is labelled with positive numbers above the y-axis and negative numbers below.

- positive, it describes a point to the right of the y-axis.
- negative, it describes a point to the left of the y-axis.

- positive, it describes a point above the x-axis.
- negative, it describes a point below the x-axis.

Look at the sign of each coordinate to decide which quadrant it belongs in.