Which statement about the graph is true? 8 7 고 H 5 5. 1 3 الا 1 1 2 3 4 5 6 7 8 X 1 The graph shows a proportional relationship because it is a line, and the difference between each point is the same. 2 The graph shows a proportional relationship because it is a line, and each x-value is a multiple of 2. 3 The graph does not show a proportional relationship because each point written as a ratio gives a different value. 4 The graph does not show a proportional relationship because a line that increases by 1 in the y-value cannot have a constant ofronortionaliti​