document.write( "Question 1149862: Find the x-intercept(s) and the coordinates of the vertex
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Algebra.Com's Answer #771198 by Edwin McCravy(20060)\"\" \"About 
You can put this solution on YOUR website!
Find the x-intercept(s) and the coordinates of the vertex for the parabola
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document.write( "\"y+=+-x%5E2+-+2x+-+1\"\r\n" );
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document.write( "x-intercepts:\r\n" );
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document.write( "\"-x%5E2-2x-1=0\"\r\n" );
document.write( "\"x%5E2%2B2x%2B1=0\"\r\n" );
document.write( "\"%28x%2B1%29%28x%2B1%29=0\"\r\n" );
document.write( "\"x%2B1=0\"\r\n" );
document.write( "\"x=-1\"\r\n" );
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document.write( "x-intercept = (-1,0)\r\n" );
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document.write( "-------------\r\n" );
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document.write( "x-coordinate of the vertex = \"-b%2F%282a%29=-%28-2%29%2F%282%28-1%29%29=-1\"\r\n" );
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document.write( "y-coordinate of the vertex =\"-x%5E2-2x-1=-%28-1%29%5E2-2%28-1%29-1+=+-1%2B2-1=0\"\r\n" );
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document.write( "vertex = (-1,0)\r\n" );
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document.write( "Whatd'y'know!!! The x-intercept and the vertex are the same point!!!\r\n" );
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document.write( "\"graph%28400%2C400%2C-4%2C3%2C-5%2C2%2C-x%5E2-2x-1%29\"\r\n" );
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document.write( "Edwin
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