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There are 7 points on a plane. Three of them are collinear. Find the maxmimum amount of distinct line that can be made from these 7 points.

 Jul 7, 2020
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From each of the non-colinear points to each poin on the line  would be   4 x 3 = 12 lines

from each of the 4 to the other three would   (4 x 3)/2 = 6 lines 

PLUS the colinear line

 

19 lines      (I believe)

 Jul 7, 2020

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