document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1176982>Question 1176982</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Let f(x)=4-x^2. The equation of the tangent line to the curve at (1,3) is 2x+y=5.\r<BR>\n" );
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document.write( "a. What is the slope of the tangent line to the curve at (1,3)?\r<BR>\n" );
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document.write( "b. What is the derivative of the function when x=1? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #805169 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=805169\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let f(x)=4-x^2. The equation of the tangent line to the curve at (1,3) is 2x+y=5.\r<BR>\n" );
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document.write( "a. What is the slope of the tangent line to the curve at (1,3)?<BR>\n" );
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document.write( "The slope is -2, as shown in part b.<BR>\n" );
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document.write( "Or,<BR>\n" );
document.write( "2x+y=5<BR>\n" );
document.write( "y = -2x + 5<BR>\n" );
document.write( "Slope = -2<BR>\n" );
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document.write( "b. What is the derivative of the function when x=1?<BR>\n" );
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document.write( "f'(x) = -2x<BR>\n" );
document.write( "f'(1) = -2 </SPAN>\n" );
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