document.write( "Question 611685: Find the value of R so the line passes through (9,13) an (5,R) has a slope of m=1/2 \n" ); document.write( "
Algebra.Com's Answer #385113 by lwsshak3(11628)\"\" \"About 
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Find the value of R so the line passes through (9,13) an (5,R) has a slope of m=1/2
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\n" ); document.write( "Slope=∆y/∆x=change in y/change in x=1/2
\n" ); document.write( "R-13/5-9=1/2
\n" ); document.write( "R-13/-4=1/2
\n" ); document.write( "2R-26=-4
\n" ); document.write( "2R=22
\n" ); document.write( "R=11
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