Question

If A has the coordinate -10 and C has the coordinate 14 and B is the midpoint of a AC, then what is the coordinates of D which is the midpoint of BC?

Answer 1

8

Explanation:

The midpoint of AC is ...

B = (A +C)/2 = (-10 +14)/2 = 2

The midpoint of BC is ...

D = (B +C)/2 = (2 +14)/2 = 8

The midpoint of BC is 8.