document.write( "Question 1025509: Find the roots (y intercepts) :
\n" ); document.write( "F(x) = 1/2X^2 - 4
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Algebra.Com's Answer #640796 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
The roots are the x-intercepts not the y-intercepts.
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\n" ); document.write( "Solving for y-intercepts: Set $\"x=0\"$ solve for $\"y\"$
\n" ); document.write( " $\"y=%281%2F2%29%280%29%5E2-4\"$
\n" ); document.write( " $\"y=-4\"$
\n" ); document.write( "( $\"0\"$ , $\"-4\"$ )
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\n" ); document.write( "Solving for x-intercepts : Set $\"y=0\"$ solve for $\"x\"$ ,
\n" ); document.write( " $\"0=%281%2F2%29x%5E2-4\"$
\n" ); document.write( " $\"%281%2F2%29x%5E2=4\"$
\n" ); document.write( " $\"x%5E2=8\"$
\n" ); document.write( " $\"x=0+%2B-+sqrt%288%29\"$
\n" ); document.write( " $\"x=0+%2B-+2sqrt%282%29\"$
\n" ); document.write( "( $\"2sqrt%282%29\"$ , $\"0\"$ )
\n" ); document.write( "( $\"-2sqrt%282%29\"$ , $\"0\"$ )
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