document.write( "Question 572898: Write the equation of the line that passes through the given point and is perpendicular to the given line. Write the answer in slope-intercept form.
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document.write( "P(-9, 7), y + 8x = -19 \n" );
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Algebra.Com's Answer #368583 by mananth(16946)![]() ![]() You can put this solution on YOUR website! 8x +y = -19 \n" ); document.write( "Find the slope of this line \n" ); document.write( " \n" ); document.write( "y = -8x-19 \n" ); document.write( "Compare this equation with y=mx+b, m= slope , & b= y intercept \n" ); document.write( "slope m = -8 \n" ); document.write( " \n" ); document.write( "The slope of a line perpendicular to the above line will be the negative reciprocal 1/8 \n" ); document.write( "m1*m2=-1 \n" ); document.write( "The slope of the required line will be 1/8 \n" ); document.write( "m= 1/8 ,point ( -9 , 7 ) \n" ); document.write( "Find b by plugging the values of m & the point in \n" ); document.write( "y=mx+b \n" ); document.write( "7 = -9/ 8 + b \n" ); document.write( "b= -65/8 \n" ); document.write( "m= 1/8 \n" ); document.write( "The required equation is y = 1/ 8x-65/ 8 \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " |