document.write( "Question 828751: find the equation pf a line that is perpendicular to the line y=1/8x+9 and contains the point (-4,0)
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Algebra.Com's Answer #499496 by erica65404(394) You can put this solution on YOUR website! we know the equation of a line is y = mx + b. \n" ); document.write( "The slope of y = 1/8x + 9 is 1/8. \n" ); document.write( "A perpendicular line has slope that is the reciprical multiplied by -1. \n" ); document.write( "So the new slope of the perpendicular equation is -8. \n" ); document.write( "y = -8x + b \n" ); document.write( "Now to find b we will plug in the x and y value of the point given into the equation. \n" ); document.write( "0 = -8(-4) + b \n" ); document.write( "0 = 32 + b \n" ); document.write( "-32 = b \n" ); document.write( "Now to finish the equation plug b into the equation. \n" ); document.write( "y = -8x - 32 \n" ); document.write( "This is the answer. \n" ); document.write( "------------------------------------------------------------------------------- \n" ); document.write( "Go to mathhelp.createaforum.com for more help by me or email me at ericahigley@yahoo.com. \n" ); document.write( " |