The points on this graph represent a relationship between x- and y-values. Which statement about the relationship is true?
It cannot be proportional because no values are given.
It cannot be proportional because a straight line through the points does not go through the origin.
It must be proportional because each time x increases by 2 units, y decreases by 1 unit.
It must be proportional because the points lie in a straight line.
The correct statement is: It cannot be proportional because a straight line through the points does not go through the origin.
Explanation: For a relationship to be proportional, it must be represented by a straight line that passes through the origin (0,0). If the line does not go through the origin, then the relationship is not proportional, even if the points lie in a straight line.