What are collinear points how many lines can you draw passing through five collinear points?

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How many straight lines can be drawn between five points (A, B, C, D, and E), no three of which are colinear?

Attempt: Given 5 points, a line consist always of 2 points. Thus the total number of straight lines that can be drawn between 5 points is 5_C_2 = 10. Is this correct? Thank you.