Answer:
One
Step-by-step explanation:
If points S, O, and N are collinear.
As we know points are collinear then a single line pass.
Because line passing through collinear points only.
If points are not collinear then a single line can't join three points.
If 3 non-collinear point then make three different line.
But here points are collinear.
So, we draw only a one line through three collinear point.
Hence, Only one lines they determine.
