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The above equation represent a standard form of parabola .

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Axis of symmetry .

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Thus, the axis of symmetry .

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Substitute the value of x in .

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Vertex of parabola .

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To find the x-intercept, substitute in .

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Thus, the x - intercepts are .

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Graph :

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1. Draw the coordinate plane.

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2. Plot the vertex and x - intercept of parabola.

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3. Draw the axis of asymmetry.

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3 Then sketch the graph, connecting the points with a smooth curve.

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