document.write( "Question 483861: Find the x-intercept of a line that passes through (-3,4) and is perpendicular to the graph of x-2y=7.\r
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document.write( "* All i know is when the slope is perpendicular to another it is the oppopsite. For example,
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document.write( "3/4
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document.write( "the perpendicular slope of this is
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document.write( "-4/3 \n" );
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Algebra.Com's Answer #331101 by b_gulsum(6)![]() ![]() ![]() You can put this solution on YOUR website! the slope of 1st line is 1/2, since \n" ); document.write( "2y=x-7 \n" ); document.write( "y=x/2-7/2.\r \n" ); document.write( "\n" ); document.write( "Therefore, the slope of 2nd line is -2.\r \n" ); document.write( "\n" ); document.write( "m:slope \n" ); document.write( "(x1,y1): (-3,4) \n" ); document.write( "the line we're looking for is: \n" ); document.write( "m=(y-y1)/(x-x1) \n" ); document.write( "-2=(y-4)/(x+3) \n" ); document.write( "y=-2x-2 \n" ); document.write( "Then, x-intercept of this line: where y=0, x=-1\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |