document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=173431>Question 173431</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A highway that has a 6% grade rises 6ft. vertically for every 100ft. horizontally. What trigonometric ratio is being used in reporting the 6% grade? Explain why. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #128285 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=128285\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A highway that has a 6% grade rises 6ft. vertically for every 100ft. horizontally. What trigonometric ratio is being used in reporting the 6% grade? Explain why.<BR>\n" );
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document.write( "The \"rise over the run\" is the side opposite over the side adjacent.  That's the tangent.<BR>\n" );
document.write( "6% is a tangent of 0.06, so the angle is 3.4336 degs.<BR>\n" );
document.write( "The 0.06 is also the slope, m, of the graph in x-y coordinates.<BR>\n" );
document.write( "Slope = tangent \r<BR>\n" );
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