To create a graph representing the number of laps Nalani can run per minute, we can use the given information. The slope of the graph would be the number of laps Nalani can run in one minute, which is found by dividing the total laps by the total time. In this case, the slope would be 18 laps / 54 minutes, which simplifies to 1/3. So, for every 1 minute, Nalani can run 1/3 of a lap.