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What is the starting point of the graph of the function \(f(x)=\sqrt{x+4}\)?

Answer and explanation

Correct answer: \((-4,0)\)

A square-root graph begins when the expression inside the radical is zero: \(x+4=0\), so \(x=-4\) and \(y=\sqrt{0}=0\). Therefore, the starting point is \((-4,0)\). Option B has the wrong sign for the x-coordinate. Exam tip: The starting point of \(y=\sqrt{x-a}\) is \((a,0)\).

Related tags

Standard-FunctionsSquare-Root-FunctionGraph-TransformationGraphs Of Standard FunctionsRelations And FunctionsMathematicsClass 11 Mcq

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