Question

The midpoint of AB is M (4, 4). If the coordinates of A are (2, 1), what are the

coordinates
of B?

Answer 1

(6,7)

Explanation:

Let B(x,y).

By the midpoint formula,

• 4 is the average of 2 and x, so x = 6.
• Similarly, y = 7.

So, the coordinates of B are (6,7).