Tyler and his family drove from atlanta to baltimore. they traveled a total of 678 miles over 2 days. what is the reference point in this scenario?

The point from which they depart in Atlanta is the reference time in this. The distance and time are both measured from that point.

Answer;

The reference point is Atlanta

Explanation;Reference point is a point that is used to find or describe or define the location of another point. Objects move relative to a reference point.  Linear motions may therefore not be detected without the presence of a reference point.In this case the reference point is Atlanta, this is where the family started their motion from. Such that this point may be used to describe their movement. It is sued to describe their movement to Baltmore.