document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=166346>Question 166346</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the equation\r<BR>\n" );
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document.write( "passing through (1,7) and (3,3) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #122597 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=122597\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> find the equation\r<BR>\n" );
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document.write( "passing through (1,7) and (3,3)<BR>\n" );
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document.write( "Find the slope m<BR>\n" );
document.write( "m = (y2-y1)/(x2-x1)<BR>\n" );
document.write( "m = (3-7)/(3-1) = -4/2<BR>\n" );
document.write( "m = -2<BR>\n" );
document.write( "Use either point<BR>\n" );
document.write( "y-y1 = m*(x-x1)<BR>\n" );
document.write( "y-7 = -2*(x-1)<BR>\n" );
document.write( "y-7 = -2x+2<BR>\n" );
document.write( "y = -2x + 9  (slope-intercept form)<BR>\n" );
document.write( "2x + y = 9  (standard form)\r<BR>\n" );
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document.write( " </SPAN>\n" );
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