document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=223354>Question 223354</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the derivative of a + 15 over the square root of a? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #167040 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=167040\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What is the derivative of a + 15 over the square root of a?<BR>\n" );
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document.write( "f(a) = (a+15)/a<BR>\n" );
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document.write( "Treating it as a quotient you get:<BR>\n" );
document.write( "f'(a) = [a(1)-(a+15)(1)]/a^2 = -15/a^2<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Changing the form you could write:<BR>\n" );
document.write( "f(a) = 1+(15/a) = 1+15*a^-1<BR>\n" );
document.write( "Then f'(a) = -15*a^-2 = -15/a^2<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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