2. _ (5.5a; Look. at the graphs- 2. ' Which of the following is true? I- The graph suggests a linear relationship between 3: and 3? because there is a constant slope. II. The graph shows that as x~vaiues increase, yvalues increase to a point and then begin to decrease, making the graph non-linea r. Ill. The graph suggests a nonlinear relationship between A: and 3* because the relationship cannot be represented by y = Rx or y = mx + b