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In the graph \(y=(x-3)^2+2\), what role does the line \(x=3\) play?

Answer and explanation

Correct answer: Axis of symmetry

For a parabola in vertex form \(y=(x-h)^2+k\), the axis of symmetry is \(x=h\). Here, \(h=3\), so \(x=3\) is the axis of symmetry. It passes through the vertex \((3,2)\) and divides the parabola into two mirror-image halves. Exam tip: in \(y=(x-h)^2+k\), read the axis directly as \(x=h\); it is not an asymptote.

Related tags

GraphsQuadratic FunctionsParabolaAxis Of SymmetryVertex FormStandard Equations And Simple Properties Of A ParabolaConic SectionsMathematics

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