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# Midpoint and length

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Find the midpoint and length of the line segment PQ where P=(2,-7) and Q=(5,1). We will also use vectors to find the length of the segment.

##### Solution Summary

This shows how to find midpoint and length of a given segment.

##### Solution Preview

The midpoint formula is given by
M = { ( x2+x1)/2 , (y2+y1)/2 }.

This gives the point, the x,y coordinate, that is halfway between the endpoints of the line segment PQ, where P=(2,-7) and Q=(5,1).

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