document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=708756>Question 708756</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Write the equation for the following relation.\r<BR>\n" );
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document.write( "R = {(x, y): (4, 5), (8, 7), (12, 9), (16, 11), . . .}\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #436384 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5328)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><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=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=436384\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> From one point to the next x increases by 4, while y increases by 2.<BR>\n" );
document.write( "So, it's a linear equation/relation/function, with a slope of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F2 ALIGN=MIDDLE  ALT=\"1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > for y as a function of x.<BR>\n" );
document.write( "The equation would be <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=%281%2F2%29x%2Bb ALIGN=MIDDLE  ALT=\"y=%281%2F2%29x%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "Substituting the coordinates of point (4, 5)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5=%281%2F2%29%284%29%2Bb ALIGN=MIDDLE  ALT=\"5=%281%2F2%29%284%29%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" >--> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5=2%2Bb ALIGN=MIDDLE  ALT=\"5=2%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=5-2 ALIGN=MIDDLE  ALT=\"b=5-2\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=3 ALIGN=MIDDLE  ALT=\"b=3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So the equation could be <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=%281%2F2%29x%2B3 ALIGN=MIDDLE  ALT=\"y=%281%2F2%29x%2B3\"   DISABLED_style= \"max-width:90%; height:auto;\" > or any of the infinity of equivalent equations,<BR>\n" );
document.write( "like <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2y=x%2B6 ALIGN=MIDDLE  ALT=\"2y=x%2B6\"   DISABLED_style= \"max-width:90%; height:auto;\" > (obtained by multiplying both sides times 2).<BR>\n" );
document.write( "or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2y-x=6 ALIGN=MIDDLE  ALT=\"2y-x=6\"   DISABLED_style= \"max-width:90%; height:auto;\" >, or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x-2y%2B6=0 ALIGN=MIDDLE  ALT=\"x-2y%2B6=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >, or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=2y-6 ALIGN=MIDDLE  ALT=\"x=2y-6\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
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