document.write( "Question 334376: What is the domain of:
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document.write( "f(x)=sqrt3-9x
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document.write( "y=2x-4 over xsquared+16
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document.write( "y=2x-4 over xsquared-16\r
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document.write( "I need step by step instructions with notes, so I can figure these type of problems out on my own. I do not even know where to begin. \n" );
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Algebra.Com's Answer #239582 by solver91311(24713)![]() ![]() You can put this solution on YOUR website! \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Functions containing a radical with an even index (square root, 4th root, etc.) must restrict the domain so that the value under the radical is non-negative.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Functions with a denominator must restrict the domain so that then denominator cannot go to zero.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Note that your second problem has a denominator that has no real zeros, hence the domain is all real numbers.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "John \n" ); document.write( " \n" ); document.write( "My calculator said it, I believe it, that settles it \n" ); document.write( " ![]() \n" ); document.write( " \n" ); document.write( " |