How can I solve/graph this position graph problem?

Help me understand this AP Physics problem of position graphs
You are driving down the road at a constant speed. Another car going a bit faster catches up with you and passes you. Draw a position graph for both vehicles on the same set of axes, and note the point on the graph where the other vehicle passes you.
I don't know whats wrong or what i don't understand. It just seems confusing at the moment
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