The statement that best describes the true relationship between any point 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 \( -f(-x) \).
This means that if you take a point \( (x,y) \) from the function \( f(x) \), then by negating both the x-coordinate and the y-coordinate, you obtain the point \( (-x,-y) \) that corresponds to \( -f(-x) \).