If the line graph had a broken line between the points

It seems like your sentence was not completed, but I think you were wondering what it is called when there is a broken line passing through two points. It would be a graphed inequality, and if the inequality has a greater than symbol ( > ), the right side of the graph would be shaded in, and if the inequality has a less than symbol ( < ), the left side of the graph would be shaded in. Inequalities with greater than or equal to and less than or equal to symbols have solid lines going through two points with no sides shaded.

50 meters per 5 seconds