document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1019792>Question 1019792</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Need help with this Calculus problem please.\r<BR>\n" );
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document.write( "Find an equation for the line tangent to the curve when x has the first value.\r<BR>\n" );
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document.write( "y=3&#8730;x<BR>\n" );
document.write( "x=4 <BR>\n" );
document.write( "x=9 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #635727 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=635727\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+3sqrt%28x%29 ALIGN=MIDDLE  ALT=\"y+=+3sqrt%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, then the derivative is the function <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=dy%2Fdx=3%2F%282sqrt%28x%29%29 ALIGN=MIDDLE  ALT=\"dy%2Fdx=3%2F%282sqrt%28x%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "==> when x = 4, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=dy%2Fdx+=+3%2F4 ALIGN=MIDDLE  ALT=\"dy%2Fdx+=+3%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >, which is the slope of the line tangent at the point (4,6) of the curve.\r<BR>\n" );
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document.write( "==> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+-+6+=+%283%2F4%29%28x-4%29 ALIGN=MIDDLE  ALT=\"y+-+6+=+%283%2F4%29%28x-4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<==> 4y - 24 = 3x - 12<BR>\n" );
document.write( "<==> 3x - 4y +12 = 0 is the tangent line.\r<BR>\n" );
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document.write( "For x = 9, the procedure is the same. </SPAN>\n" );
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