1. The problem statement, all variables and given/known data 5 dots in some plane can create how many lines? a)5 b)10 c)15 d)20 2. Relevant equations 3. The attempt at a solution If you ask me, I will say infinite, but the creators of the question think that one line can be created from at least 2 dots. Line can be created from 3, 4 ... n dots. 2 dots can create [tex]C_5^2[/tex] lines, and it is 10 lines. But what about those with 3 dots?