If the point \((13, -7)\) is on the graph of \(f(x)\), this means that \(f(13) = -7\).
To find the corresponding point on the graph of \(f(-x)\), we consider the transformation involved. The graph of \(f(-x)\) reflects the graph of \(f(x)\) across the y-axis. Therefore, the x-value of the point will be negated.
So, if \(f(13) = -7\), for \(f(-x)\): \[ f(-13) = f(13) = -7. \]
This means that the point \((-13, -7)\) must be on the graph of \(f(-x)\).
Thus, the correct response is: The point \((-13, -7)\) must be on the graph of \(f(-x)\).