document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1101426>Question 1101426</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how to find the slope or fraction on a graph when thers more than ne coordinate  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #715994 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=715994\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> if you are talking about a straight line, then:\r<BR>\n" );
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document.write( "the slope intercept form of the equation of a straight line is:\r<BR>\n" );
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document.write( "y = mx + b\r<BR>\n" );
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document.write( "m is the slope<BR>\n" );
document.write( "b is the y-intercept.\r<BR>\n" );
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document.write( "the slope is found by the formula -m = (y2 - y1) / (x2 - x1)\r<BR>\n" );
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document.write( "(x1,y1) are one coordinate point on the line.<BR>\n" );
document.write( "(x2,y2) are another coordinate point on the line.\r<BR>\n" );
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document.write( "once you find the slope, you can find the y-intercept by using one of the coordinate points and the slope.\r<BR>\n" );
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document.write( "an example:\r<BR>\n" );
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document.write( "your coordinate points are (3,5) and (6,10)\r<BR>\n" );
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document.write( "assign one of the points to (x1,y1) and the other to (x2,y2)\r<BR>\n" );
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document.write( "i assigned (3,5) to (x1,y1) and (6,10) to (x2,y2)\r<BR>\n" );
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document.write( "the slope is (y2 - y1) / (x2 - x1) which is equal to (10 - 5) / (6 - 3) which is equal to 5/3\r<BR>\n" );
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document.write( "now that you know the slope you can solve for the y-intercept.\r<BR>\n" );
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document.write( "the equation of y = mx + b become y = 5/3 * x + b\r<BR>\n" );
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document.write( "assign one of the coordinate points to x and y.\r<BR>\n" );
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document.write( "i chose (6,10).\r<BR>\n" );
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document.write( "the equation of y = 5/3 * x + b becomes 10 = 5/3 * 6 + b\r<BR>\n" );
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document.write( "simplify to get 10 = 30/3 + b\r<BR>\n" );
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document.write( "subtract 30/3 from both sides of the equation to get:\r<BR>\n" );
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document.write( "10 - 30/3 = b\r<BR>\n" );
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document.write( "solve for b to get b = 30/3 - 30/3 = 0.\r<BR>\n" );
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document.write( "the equation becomes y = 5/3 * x + 0 which becomes y = 5/3 * x.\r<BR>\n" );
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document.write( "the y-intercept is the value of y when the value of x is equal to 0.\r<BR>\n" );
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document.write( "to see if your two points are on the equation, graph the equation.\r<BR>\n" );
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document.write( "the graph looks like this:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" src = \"http://theo.x10hosting.com/2017/111401.jpg\" alt=\"$$$\" >\r<BR>\n" );
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document.write( "the red line is the graph of the equation y = 3/5 * x\r<BR>\n" );
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document.write( "the blue lines are just there to allow me to show you that the coordinate points used to create the line are on the line.\r<BR>\n" );
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document.write( "they're at (3,5) and (6,10, as they should be.\r<BR>\n" );
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document.write( "the y-intercept is at (0,0).\r<BR>\n" );
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document.write( "that's the value of y when the value of x is equal to 0.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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