Let "n" be a positive integer. How many points (x,y) in the coordinate plane are there such that x and y are integers and 0<y<x<n?

Answer 1

(n - 1)(n - 2)

Answer 2

Scott, does mean that there is only one point for this problem?

Is it (2,1)

Can you explain why you set it up as 2 binomials? Any further explanation would be greatly appreciated..

Thank you so much.