document.write( "Question 792012: 8.
\n" ); document.write( "Use the following equation to answer the following question. \r
\n" ); document.write( "\n" ); document.write( "y = x^2 - 2x - 15\r
\n" ); document.write( "\n" ); document.write( "What is the equation of the axis of symmetry?\r
\n" ); document.write( "\n" ); document.write( "A. x = -1
\n" ); document.write( "B. x = 1
\n" ); document.write( "C. y = -1
\n" ); document.write( "D. y = 1
\n" ); document.write( "

Algebra.Com's Answer #479835 by waynest(281)\"\" \"About 
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y = x^2 - 2x - 15
\n" ); document.write( "y = x^2 - 2x + (2/2)^2 - (2/2)^2 - 15
\n" ); document.write( "y = x^2 - 2x + 1 - 1 - 15
\n" ); document.write( "y = (x -1)^2 - 16
\n" ); document.write( "axis of symmetry: x = 1
\n" ); document.write( "
\n" );