document.write( "Question 700758: instructions: graph each quadratic function. name the axis of symmetry and the coordinates of the vertex.\r
\n" ); document.write( "\n" ); document.write( "1. y=-x^2+7x-2
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Algebra.Com's Answer #431995 by stanbon(75887)\"\" \"About 
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graph each quadratic function. name the axis of symmetry and the coordinates of the vertex.
\n" ); document.write( " y = -x^2+7x-2
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\n" ); document.write( "The 1st coordinate of the vertex and the equation of the axis of symmetry
\n" ); document.write( "are x = -b/(2a) = -7/(2*-1) = -7/-2 = 7/2
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\n" ); document.write( "The 2nd coordinate of the vertex is f(7/2)
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\n" ); document.write( "f(7/2) = -(7/2)^2 + 7(7/2) -2 = -(49/4) + (49/2) - 2
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\n" ); document.write( "= (-49 + 98 - 8)/4
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\n" ); document.write( "= 41/4
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\n" ); document.write( "Vertex: (7/2 , 41/4)
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\n" ); document.write( "\"graph%28400%2C400%2C-10%2C10%2C-10%2C10%2C-x%5E2%2B7x-2%29\"
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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