document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=7310>Question 7310</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Im confuse to how to do this but can you help to solve this equation...<BR>\n" );
document.write( "write the equation of the line and graph.<BR>\n" );
document.write( "1) slope=-2/3, y-intercept=-8<BR>\n" );
document.write( "2) slope=3, cointains point(2,1)<BR>\n" );
document.write( "3) passes through(-2,2) and (2,-10)<BR>\n" );
document.write( "thank you very much! it will really help me alot if you help with this one.. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #4078 by </B><A HREF=/tutors/aboutme.mpl?userid=ichudov><B>ichudov(507)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ichudov><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=ichudov><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=4078\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1) this one is easy. slope -2/3 means that there us a <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-2%2F3%2Ax+ ALIGN=MIDDLE  ALT=\"-2%2F3%2Ax+\"   DISABLED_style= \"max-width:90%; height:auto;\" > part of the equation. Y=intercept of -8 means that the constant is -8.\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-%282%2F3%29%2Ax-8 ALIGN=MIDDLE  ALT=\"y=-%282%2F3%29%2Ax-8\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "2) try doing it yourself, write y=3x+a. For point 2, 1 (x=2, y=1), write: 1=3*2+a, solve for a.\r<BR>\n" );
document.write( "\n" );
document.write( "3) \r<BR>\n" );
document.write( "\n" );
document.write( "<TABLE  BORDER=1>\n" );
document.write( "\n" );
document.write( " <TR><TD  ALIGN=MIDDLE>Solved by <A  rel=nofollow HREF=http://wiki.algebra.com/index.php/Tutoring_-_pluggable_solvers>pluggable</A> solver: <A  rel=nofollow HREF=find_equation_of_line.solver>FIND EQUATION of straight line given 2 points</A></TD></TR>\n" );
document.write( "<TR><TD  ALIGN=LEFT>hahaWe are trying to find equation of form y=ax+b, where a is slope, and b is intercept, which passes through points (x1, y1) = (-2, 2) and (x2, y2) = (2, -10).<BR>\n" );
document.write( "  Slope a is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a+=+%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29+=+%28-10-2%29%2F%282--2%29+=+-3 ALIGN=MIDDLE  ALT=\"a+=+%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29+=+%28-10-2%29%2F%282--2%29+=+-3\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "  Intercept is found from equation <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%2Ax%5B1%5D%2Bb+=+y%5B1%5D ALIGN=MIDDLE  ALT=\"a%2Ax%5B1%5D%2Bb+=+y%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" >, or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-3%2A-2+%2Bb+=+-4 ALIGN=MIDDLE  ALT=\"-3%2A-2+%2Bb+=+-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >. From that, <BR>\n" );
document.write( "  intercept b is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=y%5B1%5D-a%2Ax%5B1%5D ALIGN=MIDDLE  ALT=\"b=y%5B1%5D-a%2Ax%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" >, or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=2--3%2A-2+=+-4 ALIGN=MIDDLE  ALT=\"b=2--3%2A-2+=+-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "  <BR>\n" );
document.write( "  y=(-3)x + (-4)<BR>\n" );
document.write( "  <BR>\n" );
document.write( "  Your graph:<BR>\n" );
document.write( "  <BR>\n" );
document.write( "  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%0D%0A++drawing%28+500%2C+500%2C+-10%2C+10%2C+-10%2C+10%2C%0D%0A++++graph%28+500%2C+500%2C+-10%2C+10%2C+-10%2C+10%2C+-3%2Ax%2B-4+%29%2C%0D%0A++++red%28+locate%28+-2%2C+2%2C+%22-2%2C+2%22+%29%2C+circle%28+-2%2C+2%2C+0.15+%29+%29%2C%0D%0A++++green%28+locate%28+2%2C+-10%2C+%222%2C+-10%22+%29%2C+circle%28+2%2C+-10%2C+0.15+%29+%29%0D%0A++%29%0D%0A++ ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "  </TD></TR>\n" );
document.write( "</TABLE>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );