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Pls help !!!!!!!!!!!!!!
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Pls help !!!!!!!!!!!!!!

Pls help !!!!!!!!!!!!!!-example-1
User Rdiz
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The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola. For a quadratic function in standard form, y=ax2+bx+c , the axis of symmetry is a vertical line x=−b2a .
User Tgdavies
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