document.write( "Question 432421: y=-4x^2+12x-5 \n" ); document.write( "

Algebra.Com's Answer #299820 by Gogonati(855) $\"\"$ $\"About$

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As you know this quadratic function represent a downward parabola.\r
\n" ); document.write( "\n" ); document.write( "First, we have to find the standard form by completing the square.\r
\n" ); document.write( "\n" ); document.write( " $\"y=-4%28x%5E2-3x%29-5=-4%28x%5E2-3x%2B9%2F4%29%2B9-5=-4%28x-3%2F2%29%5E2%2B4\"$ ,Finally we get:\r
\n" ); document.write( "\n" ); document.write( " $\"y=-4%28x-3%2F2%29%5E2%2B4\"$ , that represent a parabola with vertex (3/2, 4) and axis of \r
\n" ); document.write( "\n" ); document.write( "symmetry x=3/2.\r
\n" ); document.write( "\n" ); document.write( " $\"graph%28300%2C+300%2C+-10%2C+10%2C+-10%2C+10%2C+-4x%5E2%2B12x-5%29\"$
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