he points on this graph represent a relationship between x- and y-values. Which statement about the relationship is true?
Graph with coordinates (0, 0). 3 points are plotted at approximately (1, 3.5); (2, 4.5); (3, 5.5).
It must be proportional because the points lie in a straight line.
It must be proportional because each time x increases by 1 unit, y increases by 1 unit.
It cannot be proportional because the straight line through the points does not go through the origin.
It cannot be proportional because the y-values are not whole numbers.