document.write( "Question 173930: I need to determine the value of 'r' so that the pair of points has the indicated slope for the following equation (-4,8) and (r,6), m=2/3. I was able to get this far:
\n" ); document.write( "Y2-Y1/X2-X1 = 6-8/r-(-4) = 2/3 now I am stuck. Please help.
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Algebra.Com's Answer #128832 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
You are spot on so far.\r
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\n" ); document.write( "\n" ); document.write( "\"%286-8%29%2F%28r%2B4%29=2%2F3\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28-2%29%2F%28r%2B4%29=2%2F3\"\r
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\n" ); document.write( "\n" ); document.write( "Now, just like any other proportion, cross multiply, collect terms and solve for r:\r
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\n" ); document.write( "\n" ); document.write( "\"2%28r%2B4%29=-6\"\r
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\n" ); document.write( "\n" ); document.write( "\"2r%2B8=-6\"\r
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\n" ); document.write( "\n" ); document.write( "\"2r=-14\"\r
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\n" ); document.write( "\n" ); document.write( "\"r=-7\"
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