Final answer:
The midpoint between point A at coordinate -6 and point B at coordinate 16 is found by averaging the two coordinates, resulting in a midpoint coordinate of 5.
Step-by-step explanation:
The midpoint of two points on a number line can be found by averaging the coordinates of the two points. To find the coordinate of the midpoint between point A at coordinate -6 and point B at coordinate 16, you add the coordinates of A and B and then divide the sum by 2.
Here's the calculation:
- Sum of coordinates = (-6) + 16 = 10
- Midpoint coordinate = Sum of coordinates / 2 = 10 / 2
- Midpoint coordinate = 5
Hence, the midpoint's coordinate is 5, which corresponds to answer choice (B).