Posted by **Anonymous** on Friday, August 26, 2011 at 12:53am.

Given the coordinates of one endpoint of line segment AB and its midpoint M, find the coordinates of the other endpoint.

A(0,9), M(2,5)

- geometry -
**drwls**, Friday, August 26, 2011 at 2:49am
Changes from A to M will be the same as the changes from M to B.

The x coordinate of B will be 2 + 2 = 4 and the y coordinate will be 5 - 4 = 1.

Write that as B(4,1)

- geometry -
**Anonymous**, Saturday, September 24, 2016 at 9:37pm
The midpoint of

PQ

is

=M, 1−5

. One endpoint is

=P, −3−8

.

Find the coordinates of the other endpoint,

Q

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