Consider the line $y=\frac{n}{m}x$, where $n$ and $m$ are positive integers.
- If mq - np < 0, then is the point (p,q) above the line, below the line, or on the line?
- Complete the following function, that returns true if the line segment with endpoints (p,q) and (r,s) intersects the line $y=\frac{n}{m}x$, by writing the line number and the content of each box in your answer book.
1: function clash (m, n, p, q, r, s: integer): Boolean;
2: begin
3: clash = false;
4: if(m*q - n*p)⊏⊐ 0 then clash:= true;
5: if(m*s - n*r)⊏⊐ 0 then clash:= true;
6: if(m*q - n*p)⊏⊐ 0 and (m*s - n*r)⊏⊐ 0 then clash:= true;
7: if(m*q - n*p)⊏⊐ 0 and (m*s - n*r)⊏⊐ 0 then clash:= true;
8: end;