document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=161500>Question 161500</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi, I was having problems with graphing and writing equations for graphs. The question asks \"write and equation of for the following lines.\"\r<BR>\n" );
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document.write( "a) the line passing through (-7,6) and (42, 5).\r<BR>\n" );
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document.write( "b) the line perpendicular to y = 3+5x tht passes though the point (0,1)\r<BR>\n" );
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document.write( "Could you please help me figure out how to do this?\r<BR>\n" );
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document.write( "Thank you,\r<BR>\n" );
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document.write( "Ajeenah  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #118972 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=118972\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a) first, find the slope (m) __ slope=(change in y)/(change in x) __ m=(5-6)/(42-(-7)) __ m=-1/49\r<BR>\n" );
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document.write( "next, use point-slope to write the equation __ y-6=(-1/49)(x-(-7)) __ y-6=(-1/49)x-(1/7) __ y=(-1/49)x+(41/7)\r<BR>\n" );
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document.write( "b) perpendicular means that the slopes are negative reciprocals<BR>\n" );
document.write( "__ the slope of the given line is 5, so the slope of the new line is -1/5\r<BR>\n" );
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document.write( "using point-slope (again) __ y-1=(-1/5)(x-0) __ y=(-1/5)x+1 </SPAN>\n" );
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