Jared also gathered data from a competing real estate broker’s office. The competitor’s sales were equal to the average number of sales 8 months before Jared began gathering data and again 2 and 6 months after he began gathering data. The relative minimum number of sales was lower than the relative minimum number of sales of Jared’s office.

Use the sliders for a, b, c, and d to create a graph that could model the competitor’s number of sales.