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Which of the following statements is correct about the graph of the function \(y=\frac{1}{x^2}\)?

Answer and explanation

Correct answer: It is symmetric about the y-axis

For \(f(x)=\frac{1}{x^2}\), we have \(f(-x)=\frac{1}{(-x)^2}=\frac{1}{x^2}=f(x)\). Therefore, the function is even and its graph is symmetric about the y-axis. Option B is incorrect because the function is undefined at \(x=0\), so the graph does not pass through the origin. Its domain is \(\mathbb{R}\setminus\{0\}\) and its range is \((0,\infty)\), not \(\mathbb{R}\). Exam tip: If \(f(-x)=f(x)\), the graph has symmetry about the y-axis.

Related tags

Graphs Of FunctionsRational FunctionsEven FunctionsSymmetryDomain And RangeGraphs Of Standard FunctionsRelations And FunctionsMathematics

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