Question

how many straight lines can be formed from 8 non collinear points on the X-Y plane?

Answer 1

I know this only shows 7 lines but you can keep going around and do it for each of the 8 points

so I believe it is 7 multiplied by 8

Answer 2

wait nope that's wrong
because when you get to the 2nd point you're only making 6 lines

Answer 3

so it'll be 7!
7*6*5*4*3*2*1

Answer 4

a connection exists between 2 points

Answer 5

how many ways can we pick 2 points
that is 8*7 ways
but order will matter in this case so to disregard order you divide by 2! or 2

Answer 6

oh snaps you're right dan =O
sorry about that suman

Answer 7

dan815 was right