document.write( "Question 95671: Can someone please help me.
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document.write( "Line passing through (-10,-1) and (-8,y) is perpendicular to a line with a slope of -2/9. What is the value of y.\r
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document.write( "Thank you. \n" );
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Algebra.Com's Answer #69687 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Line passing through (-10,-1) and (-8,y) is perpendicular to a line with a slope of -2/9. What is the value of y. \n" ); document.write( "--------------- \n" ); document.write( "Any line perpendicular to a line with slope -2/9 must have a slope \n" ); document.write( "of +9/2. \n" ); document.write( "--------- \n" ); document.write( "Slope of your line thru the given points is: \n" ); document.write( "slope = [y--1]/[-8--10] = (y+1)/2 \n" ); document.write( "EQUATION: \n" ); document.write( "(y+1)/2 = 9/2 \n" ); document.write( "y+1 = 9 \n" ); document.write( "y = 8 \n" ); document.write( "============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |