document.write( "Question 770946: A line passing through (–9, –4) and (10, y) is perpendicular to a line with slope -. Find the value of y. \n" ); document.write( "
Algebra.Com's Answer #469868 by Alan3354(69443)\"\" \"About 
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A line passing through (–9, –4) and (10, y) is perpendicular to a line with slope -. Find the value of y.
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\n" ); document.write( "Slope of what?
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