document.write( "Question 477773: find the slope of the line through the pair of points (4,-5) and (4,-6) \n" ); document.write( "
Algebra.Com's Answer #327382 by mananth(16946)\"\" \"About 
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x1 y1 x2 y2
\n" ); document.write( "4 -5 4 -6
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\n" ); document.write( "slope m =(y2-y1)/(x2-x1)
\n" ); document.write( "(-6-(-5 ))/(4-4 )
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\n" ); document.write( "\n" ); document.write( "The line is parallel to the y axis intersecting the x axis at 4
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