A track runner counted the number of races he had during a season. The graph shows the relationship between the number of track meets, x, and the number of races, y. coordinate plane with the x axis labeled number of track meets and the y axis labeled number of races with a line that passes through the points 0 comma 5 and 1 comma 7 Part A: Calculate the slope of the linear equation shown in the graph. Show all necessary work. (3 points) Part B: What does the slope mean for the relationship between the number of races and the number of track meets