Question

The line AB has the midpoint of (2,5) A has coordinates (1,7) find the coordinates of B

Answer 1

Point B is at (3,3)

Explanation:

the mid point is (2,5) and A is at (1,7)

first find the slope:

y1 - y2/x1 - x2

7 - 5/1 - 2

2/-1

-2/1

then go down 2 units and right 1 unit from (2,5):

(2 + 1, 5 - 2) => (3,3)