B(–9, –9) and C(1, –1) are the endpoints of a line segment. What is the midpoint M of that line segment?
Write the coordinates as decimals or integers.
To find the midpoint, we average the x-coordinates and average the y-coordinates of the endpoints.
Average x-coordinate: (x1 + x2)/2 = (-9 + 1)/2 = -8/2 = -4
Average y-coordinate: (y1 + y2)/2 = (-9 + (-1))/2 = -10/2 = -5
Therefore, the midpoint M is (-4, -5).