This is a proportional relationship because the graph shows Response area .
In order to determine if the relationship is proportional, we need more information about the graph and the variables being represented. The term "Response area" provided is not sufficient to determine if the relationship is proportional. Please provide more details about the graph and the variables being represented.
To determine if a graph represents a proportional relationship, we need to check if the points on the graph lie on a straight line passing through the origin (0,0). If the points do lie on a straight line passing through the origin, then the relationship is proportional.
However, it seems that the information provided is incomplete. Without more context or specific data points, it is not possible to determine if the graph represents a proportional relationship. Please provide additional information or clarify your question so that I can assist you further.