document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=835788>Question 835788</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1.  We are given the line y = Dx+C  where D is a real, non-zero constant.  What is the slope of this line?  What is the slope of a line parallel to this line.\r<BR>\n" );
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document.write( "2.  What is the slope of the line that is perpendicular to the line in #1?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #503715 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=503715\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How if you try a data table for different values of x?\r<BR>\n" );
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document.write( "x__________y<BR>\n" );
document.write( "0__________C<BR>\n" );
document.write( "1_________D+C<BR>\n" );
document.write( "2________2D+C<BR>\n" );
document.write( "3________3D+C\r<BR>\n" );
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document.write( "The meaning of slope is, vertical change divided by horizontal change.<BR>\n" );
document.write( "Slope from x of 0 to 1 is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28D%2BC-C%29%2F%281-0%29=%28D%2B0%29%2F1=D ALIGN=MIDDLE  ALT=\"%28D%2BC-C%29%2F%281-0%29=%28D%2B0%29%2F1=D\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "If you find the slope for all of the successive points of the table, you WILL FIND:\r<BR>\n" );
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document.write( "x__________y_______slope<BR>\n" );
document.write( "0__________C<BR>\n" );
document.write( "1_________D+C______D<BR>\n" );
document.write( "2________2D+C______D<BR>\n" );
document.write( "3________3D+C______D\r<BR>\n" );
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document.write( "Students at the introductory and intermediate algebra levels are plainly told, that the product of slopes of perpendicular lines in a plane is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-1 ALIGN=MIDDLE  ALT=\"-1\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "This means for your example form equation of the line y=Dx+C, that the slope of the line perpendicular must be  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%2AD=-1 ALIGN=MIDDLE  ALT=\"m%2AD=-1\"   DISABLED_style= \"max-width:90%; height:auto;\" >, giving <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28m=-%281%2FD%29%29 ALIGN=MIDDLE  ALT=\"highlight%28m=-%281%2FD%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >. </SPAN>\n" );
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