document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=30150>Question 30150</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how do you figure out the y-intercept of an equation and how do you figure out wether it is perpendicular or not? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #16854 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=16854\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The y-intercept means \"where am I on the y-axis when x=0?\"<BR>\n" );
document.write( "So make x=0 and whatever y is, that's the y-intercept.<BR>\n" );
document.write( " A line with slope = m is perpendicular to what ever line has <BR>\n" );
document.write( "the slope -1/m<BR>\n" );
document.write( "  say the equation is the most simple one<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+x ALIGN=MIDDLE  ALT=\"y+=+x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The y-intercept is whatever I get when x = 0.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+0 ALIGN=MIDDLE  ALT=\"y+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > that's the y-intercept<BR>\n" );
document.write( "What's the line perpendicular to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=x ALIGN=MIDDLE  ALT=\"y=x\"   DISABLED_style= \"max-width:90%; height:auto;\" >?<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+mx+%2B+b ALIGN=MIDDLE  ALT=\"y+=+mx+%2B+b\"   DISABLED_style= \"max-width:90%; height:auto;\" > is the general slope-intercept formula<BR>\n" );
document.write( "How does it compare with <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+x ALIGN=MIDDLE  ALT=\"y+=+x\"   DISABLED_style= \"max-width:90%; height:auto;\" >?<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+1%2Ax+%2B+0 ALIGN=MIDDLE  ALT=\"y+=+1%2Ax+%2B+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So 1 is the slope<BR>\n" );
document.write( "any line perpendicular to it will have slope -1/m or -1/1<BR>\n" );
document.write( "which is -1<BR>\n" );
document.write( "Hope all this makes sense. Keep working at it. </SPAN>\n" );
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