Use the table to answer the question.
Time walking (minutes) 20 30 40 60 80
Calories burned 100 150 200 300 400
The table shows a relationship between the amount of time spent walking and the number of calories burned. Determine if the relationship is proportional.
The relationship is non-proportional; the graph would be an arc.
The relationship is proportional.
The proportional relationship cannot be determined from the information provided.
The relationship is non-proportional; the graph does not pass through the origin.