Question

Do the paired points in the table represent a proportional relationship on the graph?

Answer 1

If we find the unit rate for the graph, that means it's proportional. For the first question, we could see that the unit rate is 2/1, so it's proportional. 

Answer 2

Ok so first n  a graph y is over x so it would be 1/2 2/4 3/6 and 4/8 which can all be divided to 1/2 so yes they are proportional