document.write( "Question 1079964: The line passing through ​(−1​,y) and ​(1,0​) is perpendicular to the line joining ​(4,4​) and (−2,1). Find y. \n" ); document.write( "
Algebra.Com's Answer #694203 by josgarithmetic(39630)\"\" \"About 
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Slope of line containing (4,4) & (-2,1):
\n" ); document.write( "\"%284-1%29%2F%284-%28-2%29%29\"
\n" ); document.write( "\"3%2F6\"
\n" ); document.write( "\"1%2F2\"\r
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\n" ); document.write( "\n" ); document.write( "Slope of line containing (-1,y) & (1,0), to be perpendicular, must be \"-2\", negative reciprocal of the other line.\r
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\n" ); document.write( "\n" ); document.write( "\"%28y-0%29%2F%28-1-1%29=-2\"\r
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\n" ); document.write( "\n" ); document.write( "\"y%2F%28-2%29=-2\"\r
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\n" ); document.write( "\n" ); document.write( "\"highlight%28y=4%29\"
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