document.write( "Question 127256: Find the axis of symmetry.
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\n" ); document.write( "\n" ); document.write( "I am still not getting this, can you assist one more time?
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Algebra.Com's Answer #93227 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
To find the axis of symmetry, use this formula:\r
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\n" ); document.write( "\n" ); document.write( "\"x=-b%2F%282a%29\"\r
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\n" ); document.write( "\n" ); document.write( "From the equation \"y=-x%5E2-10x%2B7\" we can see that a=-1 and b=-10\r
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\n" ); document.write( "\n" ); document.write( "\"x=%28--10%29%2F%282%2A-1%29\" Plug in b=-10 and a=-1\r
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\n" ); document.write( "\n" ); document.write( "\"x=10%2F%282%2A-1%29\" Negate -10 to get 10\r
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\n" ); document.write( "\n" ); document.write( "\"x=%2810%29%2F-2\" Multiply 2 and -1 to get -2\r
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\n" ); document.write( "\n" ); document.write( "\"x=-5\" Reduce\r
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\n" ); document.write( "\n" ); document.write( "So the axis of symmetry is \"x=-5\"
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