document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1141578>Question 1141578</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The line through A(-1, -2) and B(-5, y) is perpendicular to a line with slope 4. How would I solve for y? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #762150 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=762150\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> slope of the line through A and B is -1/4, the negative reciprocal of 4, since perpendicular lines have the product of their slopes equal to -1.\r<BR>\n" );
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document.write( "so the slope between A and B is (y+2)/(-5+1)=-(1/4)<BR>\n" );
document.write( "(y+2)/-4=-1/4<BR>\n" );
document.write( "multiply through by -4<BR>\n" );
document.write( "y+2=1<BR>\n" );
document.write( "y=-1<BR>\n" );
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