document.write( "Question 975750: slope of the line that contains points (5,-9)and (5,9) \n" ); document.write( "
Algebra.Com's Answer #597418 by Alan3354(69443)\"\" \"About 
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slope of the line that contains points (5,-9)and (5,9)
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\n" ); document.write( "Slope m = diffy/diffx
\n" ); document.write( "No change in x --> diffx = 0
\n" ); document.write( "m = infinite, or undefined.
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