document.write( "Question 370104: x + 5 / x^2 - 49\r
\n" ); document.write( "\n" ); document.write( "Find the domain of the rational function \n" ); document.write( "

Algebra.Com's Answer #263810 by Fombitz(32388) $\"\"$ $\"About$

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THe domain is all x values for which the function is defined.
\n" ); document.write( "The function is undefined when the denominator equals zero since division by zero is undefined.
\n" ); document.write( " $\"x%5E2-49=0\"$
\n" ); document.write( " $\"x=0+%2B-+7\"$
\n" ); document.write( "So the domain is all x except $\"x=7\"$ and $\"x=-7\"$
\n" ); document.write( "In interval notation,
\n" ); document.write( "( $\"-infinity\"$ , $\"-7\"$ ) U ( $\"-7\"$ , $\"7\"$ ) U ( $\"7\"$ , $\"infinity\"$ )
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