document.write( "Question 940330: F(x)=4x^2-4x-15 find the axis of symmetry and the vertex \n" ); document.write( "

Algebra.Com's Answer #573113 by Fombitz(32388) $\"\"$ $\"About$

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Convert to vertex form by completing the square.
\n" ); document.write( " $\"F%28x%29=4x%5E2-4x-15\"$
\n" ); document.write( " $\"F%28x%29=4%28x%5E2-x%29-15\"$
\n" ); document.write( " $\"F%28x%29=4%28x%5E2-x%2B1%2F4-1%2F4%29-15\"$
\n" ); document.write( " $\"F%28x%29=4%28x%5E2-x%2B1%2F4%29-4%281%2F4%29-15\"$
\n" ); document.write( " $\"F%28x%29=4%28x-1%2F2%29%5E2-16\"$
\n" ); document.write( "The vertex is ( $\"1%2F2\"$ , $\"-16\"$ ).
\n" ); document.write( "The axis of symmetry is $\"x=1%2F2\"$ \n" ); document.write( "

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