Final answer:
The midpoint of two points is found by taking the average of the x-coordinates and the average of the y-coordinates. In this case, the midpoint is (2.5, -1.5).
Step-by-step explanation:
To find the midpoint of two points, you can use the midpoint formula. The midpoint formula is calculated by finding the average of the x-coordinates and the average of the y-coordinates of the two points. In this case, the x-coordinates are -2 and 7, and the y-coordinates are -7 and 4. The average of the x-coordinates is (-2 + 7) / 2 = 2.5, and the average of the y-coordinates is (-7 + 4) / 2 = -1.5. Therefore, the midpoint is (2.5, -1.5), which is option a.