Question

The midpoint of AB is (4,2). If coordinates of A are (6,-4), what are the coordinates of B?

Answer 1

1) If the Midpoint of AB is (4,2) let's find the endpoint, given that the coordinates of A are (6,-4).

Let's find the coordinates of B:

6 + x_2 =2 x 4

6+ x_2=8

x_2=8-6

x_2 =2

-4+y_2= 2 x 2

-4 +y_2=4

y_2=4+4

y_2=8

So the coordinates of B is (2, 8)