1. The problem asks: How long did the temperature hold steady according to the graph? 2. From the description, the temperature rises from 50°F at 6 am to about 62°F at 12 Noon. 3. Then, the temperature remains steady at about 62°F from 12 Noon to 6 pm. 4. Finally, the temperature falls from 62°F at 6 pm to about 56°F at 12 Midnight. 5. To find how long the temperature held steady, we look at the time interval where the temperature did not change. 6. The temperature was steady from 12 Noon to 6 pm. 7. The duration is $$6\text{ pm} - 12\text{ Noon} = 6\text{ hours}$$. 8. Therefore, the temperature held steady for 6 hours.