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How many times does the graph of \(y=(x-3)^2+5\) intersect the \(x\)-axis?

Answer and explanation

Correct answer: 0 times

Since \((x-3)^2\ge 0\), we have \(y=(x-3)^2+5\ge 5\). The \(x\)-axis is defined by \(y=0\), so the parabola never reaches or intersects it; hence, there are 0 intersections. Its vertex is \((3,5)\), which lies above the \(x\)-axis. Exam tip: To find intersections with the \(x\)-axis, set \(y=0\) and count the real solutions.

Related tags

GraphsQuadratic FunctionsInterceptsParabolasStandard Equations And Simple Properties Of A ParabolaConic SectionsMathematicsClass 11 Mcq

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