document.write( "Question 159449: Determine the value of \"r\" so the line that passes through each pair of points has the given slope \r
\n" ); document.write( "\n" ); document.write( "(6,3)(r,2) slope= 1/2
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Algebra.Com's Answer #117599 by ankor@dixie-net.com(22740)\"\" \"About 
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Determine the value of \"r\" so the line that passes through each pair of points has the given slope
\n" ); document.write( "(6,3)(r,2) slope= 1/2
\n" ); document.write( ":
\n" ); document.write( "Use the slope formula: \"%28%28y2-y1%29%29%2F%28%28x2-x1%29%29\" = m
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\n" ); document.write( "Assign the given values as follows:
\n" ); document.write( "x1=6; y1=3
\n" ); document.write( "x2=r; y2=2
\n" ); document.write( "m = 1/2
\n" ); document.write( ":
\n" ); document.write( "\"%28%282-3%29%29%2F%28%28r-6%29%29\" = \"1%2F2\" = \"%28%28-1%29%29%2F%28%28r-6%29%29\" = \"1%2F2\"
\n" ); document.write( "Cross multiply:
\n" ); document.write( "r - 6 = 2(-1)
\n" ); document.write( "r = -2 + 6
\n" ); document.write( "r = +4
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\n" ); document.write( "Check solution; x2=4:
\n" ); document.write( "\"%28%282-3%29%29%2F%28%284-6%29%29\" = \"1%2F2\"
\n" ); document.write( "\"%28%28-1%29%29%2F%28%28-2%29%29\" = \"1%2F2\"
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