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{{ printedBook.courseTrack.name }} {{ printedBook.name }} One way to name a line is using any two points that lie on the line. We can see that there are three points on our line: $A,B,$ and $C.$ We are told that one name for this line is $AC.$ Using the third given point, we can find two other names. $ABandBCā$ Notice that the order of the letters does not matter. Therefore, the names $CA,$ $BA,$ and $CB$ are equally valid.