document.write( "Question 902750: Undefined slope, through (1,-3) \n" ); document.write( "
Algebra.Com's Answer #547509 by stanbon(75887)\"\" \"About 
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Undefined slope, through (1,-3)
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\n" ); document.write( "Comment:: Vertical lines have undefined slope.
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\n" ); document.write( "Plot the point (1,-3)
\n" ); document.write( "Draw a vertical line thru the point.
\n" ); document.write( "Equation::
\n" ); document.write( "x = 1
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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