document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=535345>Question 535345</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello everyone! I need help with logarithmic functions please! This is a hard topic for me and could use all the help I can.<BR>\n" );
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document.write( "Find the domain of the logarithmic function..\r<BR>\n" );
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document.write( "f(x)= log(x^2-17x+72) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #351860 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=351860\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the domain of the logarithmic function.. <BR>\n" );
document.write( "f(x)= log(x^2-17x+72)<BR>\n" );
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document.write( "x^2-17x+72 must be > 0<BR>\n" );
document.write( "(x-9)(x-8) > 0<BR>\n" );
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document.write( "Draw a number line and plot x=8 and x=9<BR>\n" );
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document.write( "Look for solutions in the intervals:<BR>\n" );
document.write( "Try x = 0: -*- > 0 ; true, so solutions in (-oo,8)<BR>\n" );
document.write( "Try x = 8.5: -*+ > 0 ; false<BR>\n" );
document.write( "Try x = 9.5: +*+ > 0 ; true, so solutions in (9,+oo)<BR>\n" );
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document.write( "Domain: (-oo,8)U(9,+oo)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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