The graph that represents the set of heights that satisfy this requirement is the third graph.
Which graph satisfy this requirment?
The requirment is that the heights of the people who ride the roller coaster should be at least 54 inches. This means that the height of the riders can be 54, 55, 100 0r 120.
Thus the graph that represents this is the graph that has a coloured circle on 54 and extends to number greater than 54.
To learn more about the number line, please check: https://brainly.com/question/557284