document.write( "Question 321273: Find and label the vertex (ordered pair) and the line of symmetry.\r
\n" ); document.write( "\n" ); document.write( "f(x) = 1/5 x^2 \n" ); document.write( "

Algebra.Com's Answer #230083 by Earlsdon(6294) $\"\"$ $\"About$

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The equation of the axis of symmetry of $\"f%28x%29+=+%281%2F5%29x%5E2\"$ can be found by:
\n" ); document.write( " $\"x+=+-b%2F2a\"$ and in your equation, $\"a+=+%281%2F5%29\"$ and $\"b+=+0\"$ so...
\n" ); document.write( " $\"highlight%28x+=+0%29\"$ This is the equation of the line of symmetry.
\n" ); document.write( "The vertex can be found by substituting $\"x+=+0\"$ into the given equation.
\n" ); document.write( "Replace f(x) with y.
\n" ); document.write( " $\"y+=+%281%2F5%29x%5E2\"$ Substitute $\"x+=+0\"$
\n" ); document.write( " $\"y+=+0\"$
\n" ); document.write( "The vertex is at (0, 0)
\n" ); document.write( " $\"graph%28400%2C400%2C-5%2C5%2C-5%2C5%2C%281%2F5%29x%5E2%29\"$ \n" ); document.write( "

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