document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=408100>Question 408100</A>: <I><SPAN STYLE=\"word-break: break-all;\"> determine if (-2/3,5) is solution to -3x+2y=-4 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #287575 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20849)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=287575\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  if a point (-2/3,5) is solution to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-3x%2B2y=-4 ALIGN=MIDDLE  ALT=\"-3x%2B2y=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" > must lie on the line\r<BR>\n" );
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document.write( "so, generally speaking, the <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=condition ALIGN=MIDDLE  ALT=\"condition\"   DISABLED_style= \"max-width:90%; height:auto;\" > for a point (a, b) to lie on the line <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+mx+%2B+c ALIGN=MIDDLE  ALT=\"y+=+mx+%2B+c\"   DISABLED_style= \"max-width:90%; height:auto;\" > is: \r<BR>\n" );
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document.write( "               <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b+=+ma+%2B+c ALIGN=MIDDLE  ALT=\"b+=+ma+%2B+c\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "To determine whether a point lie on the line you have to just check whether the coordinates of the point given <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=satisfy ALIGN=MIDDLE  ALT=\"satisfy\"   DISABLED_style= \"max-width:90%; height:auto;\" > the equation or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=not ALIGN=MIDDLE  ALT=\"not\"   DISABLED_style= \"max-width:90%; height:auto;\" >. For this what you have to do is : Put the value of the <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" > any <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y ALIGN=MIDDLE  ALT=\"y\"   DISABLED_style= \"max-width:90%; height:auto;\" > coordinates of the point and check whether it satisfy the equation <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-3x%2B2y=-4 ALIGN=MIDDLE  ALT=\"-3x%2B2y=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" > or not. \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-3x%2B2y=-4 ALIGN=MIDDLE  ALT=\"-3x%2B2y=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >........plug in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=-2%2F3 ALIGN=MIDDLE  ALT=\"x=-2%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=5 ALIGN=MIDDLE  ALT=\"y=5\"   DISABLED_style= \"max-width:90%; height:auto;\" >...if you get left side of equation equal to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-4 ALIGN=MIDDLE  ALT=\"-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >, then (-2/3,5) is solution to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-3x%2B2y=-4 ALIGN=MIDDLE  ALT=\"-3x%2B2y=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-3%28-2%2F3%29%2B2%2A5=-4 ALIGN=MIDDLE  ALT=\"-3%28-2%2F3%29%2B2%2A5=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-cross%283%29%28-2%2Fcross%283%29%29%2B10=-4 ALIGN=MIDDLE  ALT=\"-cross%283%29%28-2%2Fcross%283%29%29%2B10=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-%28-2%29%2B10=-4 ALIGN=MIDDLE  ALT=\"-%28-2%29%2B10=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2B10=-4 ALIGN=MIDDLE  ALT=\"2%2B10=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12=-4 ALIGN=MIDDLE  ALT=\"12=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >...........it's not a solution\r<BR>\n" );
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document.write( "check:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-3x%2B2y=-4 ALIGN=MIDDLE  ALT=\"-3x%2B2y=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >..... write it slope-intercept form\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-%283%2F2%29x-2 ALIGN=MIDDLE  ALT=\"y=-%283%2F2%29x-2\"   DISABLED_style= \"max-width:90%; height:auto;\" >...let see if point lie on a line\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C++-%283%2F2%29x-2%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C++-%283%2F2%29x-2%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "now you can plot a point (-2/3,5) and see it does not lie on that line\r<BR>\n" );
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