First let's draw the plane with the distance as function of time:
Now, the first thing we have to consider is the 20 yards that Andre ran when the football play started. That means that starting from t=0 to some value for t greater than 0, we have the following:
then, Andre turned around and ran 5 yards back. Then for another value of t greater than 0, we have the following:
In the next part, Andre stood in that spot for three seconds. That means that for the following values of t, the graph will be a horizontal line where he last stood:
Finally, Andre walked back to where he bega, so the graph would look like this:
