document.write( "Question 427584: Ok again I am stumped by this ; Write the slope-intercept equation for the line that passes through (-8, -11) and is perpendicular to -2x – 7y = -14
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document.write( " I tried this -2-8.37=10.37
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document.write( " -1-7.07=-8.07
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document.write( " =1.29
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document.write( "???????? Have I totally did this wrong? \n" );
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Algebra.Com's Answer #297349 by mananth(16946)![]() ![]() You can put this solution on YOUR website! -2x-7y=-14 \n" ); document.write( "Find the slope of this line \n" ); document.write( "-7y=2x+14 \n" ); document.write( "Divide by -7 \n" ); document.write( "y=- 2/7 x-2 \n" ); document.write( "Compare this equation with y=mx+b \n" ); document.write( "slope m =-0.29 \n" ); document.write( " \n" ); document.write( "The slope of a line perpendicular to the above line will be the negative reciprocal \n" ); document.write( "m1*m2=-1 \n" ); document.write( "The slope of the required line will be 3.50 3.5 = \n" ); document.write( " \n" ); document.write( "m= 3.50 ,point (-8,-11) \n" ); document.write( "Find b by plugging the values of m & the point in \n" ); document.write( "y=mx+b \n" ); document.write( "-11=-28+ b \n" ); document.write( "b=17 \n" ); document.write( "m=3.5 \n" ); document.write( "The required equation is y=3.5x +17 \n" ); document.write( " \n" ); document.write( " |