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Which of the following points lies on the graph of the function \(f(x)=x^2\)?

Answer and explanation

Correct answer: \((3,9)\)

A point \((x,y)\) lies on the graph when \(y=f(x)=x^2\). For \((3,9)\), \(3^2=9\), so it satisfies the condition. In option B, \(3^2=9\), not 6; in option C, \((-3)^2=9\), not -9; and in option D, \(9^2=81\), not 3. Exam tip: substitute the x-coordinate into the function and compare the result with the y-coordinate.

Related tags

Standard-FunctionsQuadratic-FunctionCoordinate-GeometryPoint-CheckingGraphs Of Standard FunctionsRelations And FunctionsMathematicsClass 11 Mcq

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