document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1199205>Question 1199205</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the missing value of the line that passes through (R,2) and (5,3) and has a slope of 1/2<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 #832970 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=832970\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "To work a problem like this, I encourage students to think informally, using the concept of slope as rise over run.  A student can get a better understanding of HOW he is solving the problem by doing that, instead of plugging numbers and variables into the formal formula for finding the slope between two points.<br><BR>\n" );
document.write( "In this problem, the two points are (R,2) and (5,3).<BR>\n" );
document.write( "The rise is from 2 to 3, a difference of 1.<BR>\n" );
document.write( "If the slope (rise over run) is 1/2 and the rise is 1, then the run must be 2.<BR>\n" );
document.write( "If the run from R to 5 is 2, then R must be 5-2=3.<br><BR>\n" );
document.write( "ANSWER: R is 3<br><BR>\n" );
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