Question: This problem is about vector. Find the point half way along the line segment from P1=(8,0,7) to P2=(6,-1,3) I know the answer is P1+1/2 P1P2=7i-1/2j+5k,

This problem is about vector.

Find the point half way along the line segment from P1=(8,0,7) to P2=(6,-1,3)

I know the answer is P1+1/2 P1P2=7i-1/2j+5k, but I want to know why we need to plus P1, I think just 1/2P1P2 is okay.

Thank you.

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