Final answer:
The coordinate of point M is 11, and MN equals 12. The possible coordinates for point N are -1 or 23, depending on whether N is to the left or right of M on the number line.
Step-by-step explanation:
The coordinate of point M on a number line is 11. Since the distance MN equals 12, to find the possible coordinates for point N, we consider two scenarios: either N is to the right of M or to the left of M.
- If N is to the right of M, we add the distance to the coordinate of M: 11 + 12 = 23. Therefore, one possible coordinate for N is 23.
- If N is to the left of M, we subtract the distance from the coordinate of M: 11 - 12 = -1. Therefore, the other possible coordinate for N is -1.
Thus, the possible coordinates for N on the number line are either -1 or 23.