Shown on the right is the graph of \( y=\frac{4}{x} \). Determine its symmetries (if any). This graph is A. symmetric to the origin. B. symmetric to the \( x \)-axis. C. symmetric to the \( y \)-axis. D. not symmetric to the \( x \)-axis, \( y \)-axis, or origin.
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Bonus Knowledge
The graph of \( y = \frac{4}{x} \) exhibits symmetry about the origin. This is because if you replace \( x \) with \( -x \), you get \( y = \frac{4}{-x} = -\frac{4}{x} \), which corresponds to the point \( (-x, -y) \). This means for every point \( (x, y) \) on the graph, there’s a corresponding point \( (-x, -y) \), confirming the origin symmetry. However, the graph is not symmetric with respect to the \( x \)-axis or \( y \)-axis. If you replace \( y \) with \( -y \), you do not obtain a valid function since the result does not maintain the same relationship. Similarly, substituting \( x \) with \( -x \) does not yield the original function, which means there’s no symmetry with respect to the \( y \)-axis either. Thus, the correct answer is A: symmetric to the origin.