Determine whether the graph represents a proportional relationship. a graph is shown. the x-axis is labeled from 0 to 9. the y-axis is labeled from 0 to 15. four points are shown on the graph on ordered pairs 0, 2 and 1, 6 and 2, 10 and 3, 12. these points are joined by a line. the label on the x-axis is number of cars. the title on the y-axis is number of wheels. yes, it is a proportional relationship because the graph goes through the origin yes, it is a proportional relationship because the graph is a straight line no, it is not a proportional relationship because the graph is not a straight line no, it is not a proportional relationship because the graph does not go through the origin