To understand how two things are related using a graph, we first need to know how to put data points on the graph.

You start by creating a coordinate system.

This has two axes:

• The horizontal line is called the X-Axis, and it represents one variable, like Variable A.
• The vertical line is called the Y-Axis, and it represents another variable, like Variable B.

Step 1: Collect Your Data

First, you need to gather pairs of values for the two variables.

For example, if you’re looking at how studying for hours affects test scores, your pairs might look like this:

• (1, 50)
• (2, 75)
• (3, 90)

Step 2: Plot the Points

Next, you’ll put each pair of numbers on the graph.

For instance, the point (1, 50) means you go 1 space over on the x-axis and 50 spaces up on the y-axis.

Step 3: Analyze the Graph

Now, take a look at the points you’ve plotted.

You might see:

• Linear Relationship: If the points form a straight line, this means there is a direct connection. As one variable goes up, the other does too, or they both go down in a steady way.
• Non-Linear Relationship: If the points create a curve, this means the relationship is more complex.

Step 4: Draw Conclusions

Look at your graph to find any patterns.

A straight line shows how changes in one variable can affect the other.

For instance, if studying more hours leads to higher test scores, you can say there’s a positive linear relationship!