document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1090449>Question 1090449</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Are the lines parallel, perpendicular, or neither?\r<BR>\n" );
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document.write( "For line 1: -8x + 2y + 12 = 0<BR>\n" );
document.write( "For line 2: y = -1/4x + 4 </SPAN>\n" );
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document.write( "to see if the lines parallel, perpendicular, or neither, use their slopes:\r<BR>\n" );
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document.write( "if the slopes are same, lines are parallel<BR>\n" );
document.write( "if the slopes are negative reciprocal to each other, lines are perpendicular\r<BR>\n" );
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document.write( "For line 1: \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-8x+%2B+2y+%2B+12+=+0 ALIGN=MIDDLE  ALT=\"-8x+%2B+2y+%2B+12+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2y+=+8x-12 ALIGN=MIDDLE  ALT=\"+2y+=+8x-12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+4x-6 ALIGN=MIDDLE  ALT=\"+y+=+4x-6\"   DISABLED_style= \"max-width:90%; height:auto;\" >=> slope <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=4 ALIGN=MIDDLE  ALT=\"m=4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "For line 2: <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+-%281%2F4%29x+%2B+4 ALIGN=MIDDLE  ALT=\"y+=+-%281%2F4%29x+%2B+4\"   DISABLED_style= \"max-width:90%; height:auto;\" >=> slope <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=-1%2F4%7D%7D%0D%0A%0D%0Asince+%7B%7B%7B-1%2F4 ALIGN=MIDDLE  ALT=\"m=-1%2F4%7D%7D%0D%0A%0D%0Asince+%7B%7B%7B-1%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" > is negative reciprocal to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%7D%7D%2C+your+lines+are+%7B%7B%7Bperpendicular ALIGN=MIDDLE  ALT=\"4%7D%7D%2C+your+lines+are+%7B%7B%7Bperpendicular\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+4x-6%2C+-%281%2F4%29x+%2B+4%29+ ALIGN=MIDDLE  ALT=\"+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+4x-6%2C+-%281%2F4%29x+%2B+4%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( " </SPAN>\n" );
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