The correct statement to describe the relationship between points on \( f(x) \) and \( -f(x) \) is:
If \( (x,y) \) is on the graph of \( f(x) \), then \( (x,-y) \) is on the graph of \( -f(x) \).
So the first option is correct. This is because the transformation from \( f(x) \) to \( -f(x) \) reflects the graph across the x-axis, changing the sign of the y-coordinate.