document.write( "Question 1108991: Find the line of symmetry of parabola whose equation is given by
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Algebra.Com's Answer #724011 by ikleyn(52805)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "Find the line of symmetry of parabola whose equation is given by
\n" ); document.write( "y = \"highlight%28cross%28x2-2x-6%29%29\" x^2 - 2x-6.
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\n" ); document.write( "\n" ); document.write( "        I assume that there is a  TYPO  in your post,  and it reads as   y = \"x%5E2+-+2x+-6\".\r
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document.write( "y = \"x%5E2+-+2x+-6\" = \"%28x-1%29%5E2-7\".\r\n" );
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document.write( "The vertex is at x= 1.\r\n" );
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document.write( "The line of symmetry is vertical line through the vertex, so it is x = 1.\r\n" );
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\n" ); document.write( "On finding the maximum/minimum of a quadratic function and vertex of a parabola see the lessons\r
\n" ); document.write( "\n" ); document.write( "    - HOW TO complete the square to find the minimum/maximum of a quadratic function\r
\n" ); document.write( "\n" ); document.write( "    - Briefly on finding the minimum/maximum of a quadratic function\r
\n" ); document.write( "\n" ); document.write( "    - HOW TO complete the square to find the vertex of a parabola\r
\n" ); document.write( "\n" ); document.write( "    - Briefly on finding the vertex of a parabola\r
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\n" ); document.write( "\n" ); document.write( "Also,  you have this free of charge online textbook in ALGEBRA-I in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this textbook under the topic \"Finding minimum/maximum of quadratic functions\". \r
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