Question

Given A(6, −17), B(−6, 17), C(4, 9), and D(−4, 4), the midpoint of which segment is at the origin?
segment AB
segment BC
segment CD
segment AD
.

Answer 1

Segment AB. That's because the coordinates of one end point of a line segment having (0,0) as its midpoint must be negatives of the corresponding coordinates of the other end point.

Answer 2

thanks!