document.write( "Question 769931: Find an equation in slope-intercept form of the line satisfying the specified conditions. Through (-6,-9) perpendicular to -7x-5y=-3 This Problem Really Confuses Me Help Please
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Algebra.Com's Answer #469146 by htmentor(1343)![]() ![]() You can put this solution on YOUR website! First, put the equation in slope-intercept form: \n" ); document.write( "-7x - 5y = -3 \n" ); document.write( "y = -7/5x + 3/5 \n" ); document.write( "Perpendicular lines have negative reciprocal slope. \n" ); document.write( "Therefore, the line has the form y = 5/7x + b \n" ); document.write( "Use the point (-6,-9) to solve for b \n" ); document.write( "-9 = (5/7)(-6) + b \n" ); document.write( "b = -9 + 30/7 \n" ); document.write( "b = -33/7 \n" ); document.write( "So the equation of the line is y = 5/7x - 33/7 \n" ); document.write( " |