We can easily determine whether the variables are in a proportional relationship or not. If the lines pass through the origin, they are meant to be in a proportional relationship. This is a line that intercepts from the origin. When all the variables are equivalent to each other, they are meant to be in a ‘proportional relationship’.

Share this amazing ‘graph proportional relationships quiz’ with your students. The answer key to the quiz is listed below. You can also try our Interpret Proportional Relationships (Graphs) Worksheet as well for a better understanding of the concepts.