document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=205331>Question 205331</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi all, I was hoping to get help with the following problems. I need to find &#8710;y / &#8710;x, given the following information:<BR>\n" );
document.write( "a) y = 1/x, x = 3,  &#8710;x = 0.01;<BR>\n" );
document.write( "b) y = sqrt(x), x = 9, &#8710;x = 0.9<BR>\n" );
document.write( "Any help would be great,<BR>\n" );
document.write( "Thanks, -nick. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #155048 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=155048\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  I need to find &#8710;y / &#8710;x, given the following information:<BR>\n" );
document.write( "a) y = 1/x, x = 3, &#8710;x = 0.01;<BR>\n" );
document.write( "@ x = 2.99, y = 1/2.99, &#8710;y= 1/3 - 1/2.99 = (2.99 - 3)/8.97 =~ -0.0011148<BR>\n" );
document.write( "@ x = 3, y= 1/3<BR>\n" );
document.write( "@ x = 3.01, y = 1/3.01. Vy= 1/3.01 - 1/3 = (3-3.01)/9.03 =~ -0.0011074<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "b) y = sqrt(x), x = 9, &#8710;x = 0.9<BR>\n" );
document.write( "Excel is very useful for these.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );