Final answer:
There are two possible coordinates for point M when it is on the same line as point A with a distance of 5 units from A: they are 2 and -8.
Step-by-step explanation:
The student's question involves finding all possible coordinates of point M given that it lies on the same line as point A (whose coordinate is -3) and the distance AM equals 5 units. There are two possible scenarios here as lines extend in two directions.
- If M is to the right of A, then M would be located at (A + AM), which is -3 + 5, giving us the coordinate 2.
- If M is to the left of A, then M would be located at (A - AM), which is -3 - 5, giving us the coordinate -8.
Therefore, the two possible coordinates for point M are 2 and -8.