Final answer:
The coordinates of the point that is one-half the distance between A(-1, 9) and B(3, 8) are (1, 8.5).
Step-by-step explanation:
To find the coordinates of a point that is one-half the distance between A(-1, 9) and B(3, 8), we need to find the midpoint of the line segment AB. The midpoint of a line segment is the average of the x-coordinates and the average of the y-coordinates of the endpoints.
The x-coordinate of the midpoint is (-1 + 3) / 2 = 1. The y-coordinate of the midpoint is (9 + 8) / 2 = 8.5. So, the coordinates of the midpoint are (1, 8.5), which is option B.