document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=949478>Question 949478</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Write and equation of the line that goes through the point (3,7) and is perpendicular to the line y=-3x+6\r<BR>\n" );
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document.write( "write an equation of the line that goes through the point (-2,-1) and is perpendicular to the line -2x+5y=1\r<BR>\n" );
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document.write( "Determine which of the following lines,if any are perpendicular or parallel?<BR>\n" );
document.write( "y=1/3x-1                -2x+6y=3             6x+2y=3\r<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 #579658 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</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=579658\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Here is shown two things but not the answers to your questions.\r<BR>\n" );
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document.write( "If the slopes of each of two lines in a plane are m and M, and if the <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%2AM=-1 ALIGN=MIDDLE  ALT=\"m%2AM=-1\"   DISABLED_style= \"max-width:90%; height:auto;\" >, then the two lines are perpendicular.  In other words, if the slopes are negative reciprocals of each other, then the lines are perpendicular.\r<BR>\n" );
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document.write( "Slope-Intercept form equation for a line is often represented y=mx+b.<BR>\n" );
document.write( "The variable m is the slope.\r<BR>\n" );
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document.write( "A standard form equation of a line as Ax+By=C, can be solved for y in terms of x.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=By=-Ax%2BC ALIGN=MIDDLE  ALT=\"By=-Ax%2BC\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-Ax%2FB%2BC%2FB ALIGN=MIDDLE  ALT=\"y=-Ax%2FB%2BC%2FB\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-%28A%2FB%29x%2BC%2FB ALIGN=MIDDLE  ALT=\"y=-%28A%2FB%29x%2BC%2FB\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "This shows you that the slope of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Ax%2BBy=C ALIGN=MIDDLE  ALT=\"Ax%2BBy=C\"   DISABLED_style= \"max-width:90%; height:auto;\" >  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;\" >.  A line perpendicular to it would have a slope <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B%2FA ALIGN=MIDDLE  ALT=\"B%2FA\"   DISABLED_style= \"max-width:90%; height:auto;\" >. </SPAN>\n" );
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