To determine the value of \( f(x) \) as \( x \) approaches \( 4 \) from the left (denoted as \( x \to 4^- \)), we need to analyze the behavior of the graph of the rational function in that region.
From the description, we know that the graph has a vertical asymptote at \( x = 4 \). This suggests that as \( x \) approaches \( 4 \) from the left (i.e., just smaller than \( 4 \)), the function \( f(x) \) likely tends towards either positive or negative infinity.
Since the branch of the graph that is mentioned as being between the asymptotes rises from left to right, we can infer that as we approach \( x = 4 \) from the left, \( f(x) \) will be increasing and moving towards positive infinity.
Thus, we can complete the statement:
As \( x \to 4^- \), \( f(x) \to \infty \).
However, since this is not one of the specific numerical options provided (like -7, 7, -3, or 3), and based on the behavior described, we can conclude:
As \( x \to 4^- \), \( f(x) \to +\infty \).
If you must choose from the provided options and there isn't a "tends to infinity" response available, it looks like there might be some misunderstanding or miscommunication in what was expected in the answer. Please ensure that the correct options are being provided.