document.write( "Question 401157: find the slope of (13,9),(-5,9) \n" ); document.write( "
Algebra.Com's Answer #283848 by stanbon(75887)\"\" \"About 
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find the slope of (13,9),(-5,9)
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\n" ); document.write( "slope = (9-9)/(-5-13) = 0/(-18) = 0
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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