If point C is the midpoint of Line AB, what is the coordinate of point B?

(here's the link for the picture)
http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_0203_04/image0034e3719e9.gif

Question

If point C is the midpoint of Line AB, what is the coordinate of point B?

(here's  the link for the picture)
http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_0203_04/image0034e3719e9.gif

jlastino · Answer

I'm getting a "Cookie Error" :( can't view the image

anonymous · Answer

it's good now...
Let (M, N) be the coordinates of point B...

1 = (M+5)/2
5 = (N+5)/2

solve for M and N you you'll have the coordinates of B

anonymous · Answer

the internet problem for write equation

anonymous · Answer

(x,y)
 ( 5+1)/2=3
 (5+4)/2 = 9/2
( 3, 9/2)

anonymous · Answer

$$(3, \frac{9}{2})$$