document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=505920>Question 505920</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help!  I have to solve by graphing 7x- 3y = 1  and 2y = 5x.<BR>\n" );
document.write( "I have no idea how to do it.\r<BR>\n" );
document.write( "\n" );
document.write( "Thanks so much </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #340082 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=340082\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I have to solve by graphing 7x- 3y = 1 and 2y = 5x.<BR>\n" );
document.write( "Put both equations into the slope/intercept format<BR>\n" );
document.write( "7x - 3y = 1<BR>\n" );
document.write( "-3y = -7x + 1<BR>\n" );
document.write( "Y has to be positive, multiply both sides by -1<BR>\n" );
document.write( "3y = 7x - 1<BR>\n" );
document.write( "divide both sides by 3<BR>\n" );
document.write( "y = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F3 ALIGN=MIDDLE  ALT=\"7%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" >x - <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F3 ALIGN=MIDDLE  ALT=\"1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" >; the slope/intercept form (Red)<BR>\n" );
document.write( "and<BR>\n" );
document.write( "2y = 5x<BR>\n" );
document.write( "divide both sides y 2<BR>\n" );
document.write( "y = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2F2 ALIGN=MIDDLE  ALT=\"5%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >x<BR>\n" );
document.write( "y = 2.5x<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Plot these equations from x=-3, to x=+1<BR>\n" );
document.write( "y = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F3 ALIGN=MIDDLE  ALT=\"7%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" >x - <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F3 ALIGN=MIDDLE  ALT=\"1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "replace x with -3<BR>\n" );
document.write( "y = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F3 ALIGN=MIDDLE  ALT=\"7%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" >(-3) - <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F3 ALIGN=MIDDLE  ALT=\"1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "y = -7 - <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F3 ALIGN=MIDDLE  ALT=\"1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "y = -7<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F3 ALIGN=MIDDLE  ALT=\"1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "y = - 7.33<BR>\n" );
document.write( "do the same for x = -2, x = 0, and x = +1<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( " x | y<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "-3 |-7.333<BR>\n" );
document.write( "-2 |-5<BR>\n" );
document.write( " 0 |-.333<BR>\n" );
document.write( "+1 |+2<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Do the same for y = 2.5x (green)<BR>\n" );
document.write( " x | y<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "-3 |-7.5<BR>\n" );
document.write( "-2 |-5<BR>\n" );
document.write( " 0 | 0<BR>\n" );
document.write( "+1 |2.5<BR>\n" );
document.write( ":<BR>\n" );
document.write( "You should note that where x=-2, y = -5 in both equation so this is the solution<BR>\n" );
document.write( "-2,-5, this should be the intersection of the graph<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Graph this with these points, intersection is not easy to see but should look like this<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+200%2C+-4%2C+2%2C+-7%2C+4%2C+2.33x-.333%2C+2.5x%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+200%2C+-4%2C+2%2C+-7%2C+4%2C+2.33x-.333%2C+2.5x%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );