document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1107674>Question 1107674</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Determine whether the lines are parallel, perpendicular, or neither.\r<BR>\n" );
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document.write( "f(x)= 12x - 6<BR>\n" );
document.write( "g(x)= -12x + 11\r<BR>\n" );
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document.write( "f(x) = 14x - 9<BR>\n" );
document.write( "g(x) = 14x + 9\r<BR>\n" );
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document.write( "-7x + 28y = 2<BR>\n" );
document.write( "-4x - y = 8\r<BR>\n" );
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document.write( "-6x + 3y = 2<BR>\n" );
document.write( "3x + 6y = 18\r<BR>\n" );
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document.write( "x + 5y = -10<BR>\n" );
document.write( "5x + 4y = 13 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #722697 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=722697\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Determine whether the lines are parallel, perpendicular, or neither.\r<BR>\n" );
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document.write( "Put the listing inside the 'pre' tags and it will look the way you wanted:<BR>\n" );
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document.write( "f(x)= 12x - 6\r\n" );
document.write( "g(x)= -12x + 11\r\n" );
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document.write( "f(x) = 14x - 9\r\n" );
document.write( "g(x) = 14x + 9\r\n" );
document.write( "\r\n" );
document.write( "-7x + 28y = 2\r\n" );
document.write( "-4x - y = 8\r\n" );
document.write( "\r\n" );
document.write( "-6x + 3y = 2\r\n" );
document.write( "3x + 6y = 18\r\n" );
document.write( "\r\n" );
document.write( "x + 5y = -10\r\n" );
document.write( "5x + 4y = 13\r\n" );
document.write( "</PRE>\r<BR>\n" );
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document.write( "You need to know for the slopes:<BR>\n" );
document.write( "If same, the parallel.<BR>\n" );
document.write( "If negative reciprocals, or their product is negative 1, the perpendicular.<BR>\n" );
document.write( "If neither of these, then \"neither\" but their lines intersect.\r<BR>\n" );
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document.write( "Some of you pair are in the slope-intercept form, so you figure those yourself.\r<BR>\n" );
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document.write( "Some of your pair are in the AX+By=C  form, so you can still find the slope of each by solve for y in terms of x, and adjust to the slope-intercept form:  slope would be  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-A%2FB ALIGN=MIDDLE  ALT=\"-A%2FB\"   DISABLED_style= \"max-width:90%; height:auto;\" >. </SPAN>\n" );
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