The statement that is not supported by the graph is that A. the slope is 1/12.
What is the odd statement?
Every other statement is correct except for the one that says that the slope of the graph is 1/12. It is true from the graph that Imani ran at a constant rate. It is also true that Imani ran 5 miles in 1 hour.
From the x-axis where we have the time in minutes, it is also clear that Imani ran 12 miles every hour. So, all of the statements are correct except the first one which states that the slope of the graph is 1/12.