The graph you provided shows a straight line that passes through the origin $(0,0)$. In mathematical terms, this indicates a proportional relationship.

Explanation:

• A relationship is proportional if the graph is a straight line that goes through the origin. This means that the ratio between the variables (e.g., $y/x$) is constant.
• Since the line on your graph does pass through the origin, it confirms that the relationship is proportional.

Would you like more details or have any questions?

Here are some related questions you might find interesting:

1. What is the general form of the equation for a proportional relationship?
2. How do you determine the constant of proportionality from a graph?
3. What are examples of real-life proportional relationships?
4. How does a non-proportional relationship look on a graph?
5. Can a proportional relationship ever be nonlinear?

Tip: Remember, if the line does not pass through the origin but is still straight, the relationship is linear but not proportional.