document.write( "Question 319785: Find the slope of a line passing through the points (6,3) and (6,-4). I worked it y2 -y1/ x2-x1 and came up with -1/0. knowing you can not divide by 0,would the answer be undefined? \n" ); document.write( "
Algebra.Com's Answer #229019 by Alan3354(69443)\"\" \"About 
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Yes, it's undefined.
\n" ); document.write( "The line is parallel to the y-axis, often referred to as vertical.
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\n" ); document.write( "It's actually -7/0, or 7/0, but that's still undefined.
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