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| Question 8278:  Thank you so much for your help. I'm having a lot of problems understanding geometry.
 On this problem I came up with W=2 but I didn't really understand what to do get the answer. If you could help me with that please that would be great. I would appreciate an explanation as well because I didn't understand when my teacher was explaining. Here is the problem:
 W, R, and S are points on a number line, and W is the midpoint of RS. For each pair of coordinates given, find the coordinate of the third point.
 R= 4, S= -6
 Answer by bonster(299)
      (Show Source): 
You can put this solution on YOUR website! Since W is the midpoint of line segment RS (SR) and we know that R=4 and S=-6, we need to first find out the length of line segment RS |-6|+4=6+4=10
 
 the midpoint of 10=5 SO, start from R, 4 and subtract 5:
 4-5=-1
 
 W=-1
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