document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=665933>Question 665933</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am having a really hard time with this. Can you help me and explain in detail so I can understand how to do this? Thanks.\r<BR>\n" );
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document.write( "Find an equation line perpendicular to the line -2x-7y=7 having the same y intercept as -9y-4y=-6 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #414211 by </B><A HREF=/tutors/aboutme.mpl?userid=ReadingBoosters><B>ReadingBoosters(3246)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ReadingBoosters><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=414211\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Starting with the line -2x-7y=7<BR>\n" );
document.write( "...<BR>\n" );
document.write( "Put it into slope-intercept form of y=mx+b<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-2x+-+cross%287y%29+%2B+cross%287y%29+-+highlight%287%29+=+cross%287%29+%2B+highlight%287y%29+-+cross%287%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Yielding<BR>\n" );
document.write( "7y = -2x - 7<BR>\n" );
document.write( "Divide both sides by 7 to isolate y<BR>\n" );
document.write( "y = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-2x%2F7+-+7%2F7 ALIGN=MIDDLE  ALT=\"-2x%2F7+-+7%2F7\"   DISABLED_style= \"max-width:90%; height:auto;\" > which is the same as y = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-2%2F7 ALIGN=MIDDLE  ALT=\"-2%2F7\"   DISABLED_style= \"max-width:90%; height:auto;\" >x - 1<BR>\n" );
document.write( "...<BR>\n" );
document.write( "The slope of this line is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28-2%2F7%29 ALIGN=MIDDLE  ALT=\"highlight%28-2%2F7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "...<BR>\n" );
document.write( "(The perpendicular line will need to have the slope of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F2 ALIGN=MIDDLE  ALT=\"7%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, which is the negative reciprocal.)<BR>\n" );
document.write( "...<BR>\n" );
document.write( "Using, did you mean, -9x-4y=-6, put it into y=mx+b<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-9x+-+cross%284y%29+%2B+highlight%286%29+=+cross%28-6%29+%2B+highlight%284y%29+%2B+cross%286%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Yielding<BR>\n" );
document.write( "4y = -9x + 6<BR>\n" );
document.write( "Divide both sides by 4 to isolate y<BR>\n" );
document.write( "y = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-9x%2F4%29+%2B+%286%2F4%29 ALIGN=MIDDLE  ALT=\"%28-9x%2F4%29+%2B+%286%2F4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > which is the same as y = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-9%2F4 ALIGN=MIDDLE  ALT=\"-9%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >x + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2F2 ALIGN=MIDDLE  ALT=\"3%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "...<BR>\n" );
document.write( "The y intercept is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%283%2F2%29 ALIGN=MIDDLE  ALT=\"highlight%283%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "...<BR>\n" );
document.write( "(The new line will need to have the y intercept of (3/2))}}}<BR>\n" );
document.write( "...<BR>\n" );
document.write( "Plugging in the slope of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F2 ALIGN=MIDDLE  ALT=\"7%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > and intercept of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2F2 ALIGN=MIDDLE  ALT=\"3%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >,<BR>\n" );
document.write( "the new line will be <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28y+=+%287%2F2%29x+%2B+%283%2F2%29%29 ALIGN=MIDDLE  ALT=\"highlight_green%28y+=+%287%2F2%29x+%2B+%283%2F2%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "...<BR>\n" );
document.write( "Red line:  new line <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+%287%2F2%29x+%2B+%283%2F2%29 ALIGN=MIDDLE  ALT=\"y+=+%287%2F2%29x+%2B+%283%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Green line:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+%28-2%2F7%29x+-+1 ALIGN=MIDDLE  ALT=\"y+=+%28-2%2F7%29x+-+1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Blue line: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+%28-9%2F4%29x+%2B+%283%2F2%29 ALIGN=MIDDLE  ALT=\"y+=+%28-9%2F4%29x+%2B+%283%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28300%2C200%2C-10%2C10%2C-10%2C10%2C%287%2F2%29x%2B%283%2F2%29%2C%28-2%2F7%29x-1%2C%28-9%2F4%29x%2B%283%2F2%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".....................<BR>\n" );
document.write( "Delighted to help.<BR>\n" );
document.write( "-Reading Boosters<BR>\n" );
document.write( "Wanting for others what we want for ourselves.<BR>\n" );
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