document.write( "Question 849726: Find the distance between the two parallel lines given by the equation: 5x-4y=22 and -75x=150-60y\r
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document.write( "the instructions given by the teacher were:
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document.write( "1. put both equations in y=mx+b form
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document.write( "2. find a point (x,y) on either equation
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document.write( "3. find equation of the perpendicular line that passes through (x,y)
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document.write( "4. use systematic equation to solve with equation 3 (the new one) and the one that wasn't used to get the point in step 2
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document.write( "5. calculate with distance formula\r
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document.write( "I don't know how to continue after solving both equations for y=mx+b \n" );
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Algebra.Com's Answer #511740 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Find the distance between the two parallel lines given by the equation: 5x-4y=22 and -75x=150-60y \n" ); document.write( "---------------- \n" ); document.write( "5x-4y=22 --> y = (5/4)x - 11/2 \n" ); document.write( "-75x=150-60y --> y = (5/4)x + 5/2 \n" ); document.write( "------------ \n" ); document.write( "y = (5/4)x - 11/2 \n" ); document.write( "(0,-11/2) is a point \n" ); document.write( "Perpendicular thru the point --> y = (-4/5)x - 11/2 \n" ); document.write( "----- \n" ); document.write( "y = (-4/5)x - 11/2 = (5/4)x + 5/2 \n" ); document.write( "-16x - 110 = 25x + 50 \n" ); document.write( "x = -160/41 \n" ); document.write( "y = 640/205 - 11/2 = 256/82 - 451/82 = -195/82 \n" ); document.write( "Intersection at (-160/41,-195/82) \n" ); document.write( "-------------- \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "d =~ 4.95 \n" ); document.write( " |