document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=809797>Question 809797</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the domain (with the two restrictions)of the function: <BR>\n" );
document.write( "y=(sqr(x+7))/(x-8)<BR>\n" );
document.write( "(i.e. square root of x + 7 on top the fraction bar with x - 8 on bottom)\r<BR>\n" );
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document.write( "I got [-7, 8)U(8, infinity) but home work site says it's incorrect. Puzzled!  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #487786 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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/cgi-bin/show-face.mpl?user=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=487786\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Here's a plot:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+sqrt%28+x%2B7+%29+%2F+%28+x-8+%29+ ALIGN=MIDDLE  ALT=\"+y+=+sqrt%28+x%2B7+%29+%2F+%28+x-8+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+400%2C+400%2C+-20%2C+20%2C+-10%2C+10%2C+sqrt%28+x%2B7+%29+%2F+%28+x-8+%29+%29+ ALIGN=MIDDLE  ALT=\"+graph%28+400%2C+400%2C+-20%2C+20%2C+-10%2C+10%2C+sqrt%28+x%2B7+%29+%2F+%28+x-8+%29+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "The domain looks like<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+%3E=+-7+ ALIGN=MIDDLE  ALT=\"+x+%3E=+-7+\"   DISABLED_style= \"max-width:90%; height:auto;\" > because there can't be a square root<BR>\n" );
document.write( "of a negative number in the numerator<BR>\n" );
document.write( "But the point <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+8+ ALIGN=MIDDLE  ALT=\"+x+=+8+\"   DISABLED_style= \"max-width:90%; height:auto;\" > must be excluded since<BR>\n" );
document.write( "the denominator can't be = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+0+ ALIGN=MIDDLE  ALT=\"+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "</TD></TR></TABLE>\n" );