Algebra Discussion Board Question

Professor Houston and Class, I always take time to go in the gym early in the morning because I feel like I am always energized for the rest of the day if I do exercise regularly. I think there is a relationship between exercising in the morning and getting energized for the rest of the day. This relationship is positive because the more I kept the habit, the more like I have endurance and strength to do my daily task. It’s like a line with a positive slope as shown in the graph below. It’s like my endurance is a function of my habit of exercising regularly. In addition to that overtime I have observed that my immunity to common diseases has improved.

From the Professor,

Thanks for attaching your graph! Drawing a graph in Word can be challenging, which is why I made it optional. You did great! I can see how as you increase in your exercise, you increase in your endurance because the line goes up from left to right. It's a pretty smooth graph.

QUESTION:

Is there anything or event that might cause the graph to have an anomaly?