document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=253917>Question 253917</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the slope line through the points (2,2) and (4,3)? \r<BR>\n" );
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document.write( "The answer is 1/2 but i don't understand how? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #186266 by </B><A HREF=/tutors/aboutme.mpl?userid=dabanfield><B>dabanfield(803)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=dabanfield><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=186266\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> what is the slope line through the points (2,2) and (4,3)? <BR>\n" );
document.write( "The answer is 1/2 but i don't understand how?\r<BR>\n" );
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document.write( "The formula for the slope of the line between two points (x1,y1) and (x2,y2) is:\r<BR>\n" );
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document.write( "(y2-y1)/(x2-x1)\r<BR>\n" );
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document.write( "So in this case the slope is:\r<BR>\n" );
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document.write( "(3-2)/(4-2) = 1/2\r<BR>\n" );
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document.write( "Notice that if we reversed the points would also have:\r<BR>\n" );
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document.write( "(2-3)/(2-4) = -1/-2 = 1/2\r<BR>\n" );
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document.write( "   </SPAN>\n" );
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