document.write( "Question 143555: find domain and range\r
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document.write( "f(x)=2-square root xsquared+3x+2divided by x squared+5x+4 \n" );
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Algebra.Com's Answer #104488 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! find domain and range \n" ); document.write( "f(x)=2-square root xsquared+3x+2divided by x squared+5x+4 \n" ); document.write( "---------------- \n" ); document.write( "y = [2*sqrt(x^2+3x+2)] / [x^2+5x+4]\r \n" ); document.write( "\n" ); document.write( "y = [2*sqrt[(x+1)(x+2)] / [(x+4)(x+1)]\r \n" ); document.write( "\n" ); document.write( "------------------- \n" ); document.write( "Domain: x cannot be -1 or -4 \n" ); document.write( "x^2+3x+2 must not be negative; but it never is. \n" ); document.write( "So, domain is \"all Real Numbers except x=-1 and x=-4\". \n" ); document.write( "--------------- \n" ); document.write( "Range: With those asymptotes all y values are possible \n" ); document.write( "So, range is \"all Real Numbers\". \n" ); document.write( "================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |