document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=764030>Question 764030</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The function \r<BR>\n" );
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document.write( "f(x)=(x-1)/((x-4)sqrt(x+2)) \r<BR>\n" );
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document.write( "is negative for x in \r<BR>\n" );
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document.write( "a. (1,4)<BR>\n" );
document.write( "b. (4, infinite)<BR>\n" );
document.write( "c. (-infinite, 4)<BR>\n" );
document.write( "d. (-infinite, 1)\r<BR>\n" );
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document.write( "Please tell me how to find the correct answer,<BR>\n" );
document.write( "Thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #465150 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=465150\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The function <BR>\n" );
document.write( "f(x)=(x-1)/((x-4)sqrt(x+2)) <BR>\n" );
document.write( "is negative for x in <BR>\n" );
document.write( "a. (1,4)<BR>\n" );
document.write( "b. (4, infinite)<BR>\n" );
document.write( "c. (-infinite, 4)<BR>\n" );
document.write( "d. (-infinite, 1)<BR>\n" );
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document.write( "x cannot be 1, 4, < -2<BR>\n" );
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document.write( "Draw a number line and plot -2,1,and 4.<BR>\n" );
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document.write( "Find the intervals on the line where f(x) is negative.<BR>\n" );
document.write( "Test x = 0 ; you get -/(-*+) = + so no solutions in the interval (-2,1)<BR>\n" );
document.write( "Test x = 2 ; you get +/(-*+) = - for interval (1,4)<BR>\n" );
document.write( "Test x = 10 ; you get +/(+*+) = + so no solutions in (4,+oo)<BR>\n" );
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document.write( "Ans: b<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( " </SPAN>\n" );
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