The points on this graph represent a relationship between x- and y-values. Which statement about the relationship is true? Line graph where line does not start at (0, 0) but further up y axis. 4 points are plotted in a line on graph. CLEAR CHECK It cannot be proportional because the straight line through the points does not go through the origin. It cannot be proportional because no values are given. It must be proportional because each time x increases by 3 units, y increases by 1 unit. It must be proportional because the points lie in a straight line.