document.write( "Question 819546: Write an equation in slope intercept form for the line described:
\n" );
document.write( "contains point (4, -3)and is perpendicular to y=4x+5 \n" );
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Algebra.Com's Answer #493408 by LinnW(1048)![]() ![]() You can put this solution on YOUR website! We want a line perpendicular to y=4x+5. \n" ); document.write( "The slope needs to be the negative inverse of \n" ); document.write( "the original equation. The negative inverse \n" ); document.write( "of 4 is -1/4. (4)(-1/4)=1. \n" ); document.write( "Using y = mx + b as a template, \n" ); document.write( "and the point (4,-3) we will \n" ); document.write( "substitute -1/4 for m, 4 for x, and -3 for y. \n" ); document.write( " -3 = (-1/4)(4) + b \n" ); document.write( " -3 = -1 + b \n" ); document.write( "add 1 to each side. \n" ); document.write( " -2 = b \n" ); document.write( "So our equation is y = (-1/4)x -2 \n" ); document.write( " |