Algebra.Com's Answer #560259 by MathLover1(20849)  You can put this solution on YOUR website! an equation of the line perpendicular to and containing the point ( , ):\r \n" );
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document.write( " Solved by pluggable solver: Finding the Equation of a Line Parallel or Perpendicular to a Given Line | \n" );
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document.write( " Remember, any two perpendicular lines are negative reciprocals of each other. So if you're given the slope of , you can find the perpendicular slope by this formula: \n" );
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document.write( " where is the perpendicular slope \n" );
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document.write( " So plug in the given slope to find the perpendicular slope \n" );
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document.write( " When you divide fractions, you multiply the first fraction (which is really ) by the reciprocal of the second \n" );
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document.write( " Multiply the fractions. \n" );
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document.write( " So the perpendicular slope is  \n" );
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document.write( " So now we know the slope of the unknown line is (its the negative reciprocal of from the line ).\n" );
document.write( "Also since the unknown line goes through (1,-1), we can find the equation by plugging in this info into the point-slope formula \n" );
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document.write( " Point-Slope Formula: \n" );
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document.write( " where m is the slope and ( , ) is the given point \n" );
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document.write( " Plug in , , and  \n" );
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document.write( " Distribute  \n" );
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document.write( " Multiply \n" );
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document.write( " Subtract from both sides to isolate y \n" );
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document.write( " Make into equivalent fractions with equal denominators \n" );
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document.write( " Combine the fractions \n" );
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document.write( " Reduce any fractions \n" );
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document.write( " So the equation of the line that is perpendicular to and goes through ( , ) is  \n" );
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document.write( " So here are the graphs of the equations and  \n" );
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document.write( " graph of the given equation (red) and graph of the line (green) that is perpendicular to the given graph and goes through ( , ) \n" );
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