document.write( "Question 114529: Find the slope of the line that is perpendicular to 3x+2y=4 \n" ); document.write( "
Algebra.Com's Answer #83311 by MathLover1(20850)\"\" \"About 
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Find the slope of the line that is perpendicular to \"3x%2B2y=4\"\r
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\n" ); document.write( "\n" ); document.write( "Perpendicular lines and their slopes: \"m%5B1%5D+=+-1%2Fm%5B2%5D\" \r
\n" ); document.write( "\n" ); document.write( "In other words, perpendicular slopes are \"negative\"\"+reciprocals+\"of each other.\r
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\n" ); document.write( "\n" ); document.write( "\"3x%2B2y=4\"….first we need to write this equation in \"slope_intercept\" form \"y+=+mx+%2B+b\" like this:\r
\n" ); document.write( "\n" ); document.write( "\"2y=+-3x+%2B+4\"…….divide both sides by \"2\"\r
\n" ); document.write( "\n" ); document.write( "\"2y%2F2+=+-3x%2F2+%2B+4%2F2\"…….\r
\n" ); document.write( "\n" ); document.write( "\"y+=+-%283%2F2%29x+%2B+2\"……….this is \"slope_intercept\" form, and we see that \"m%5B1%5D+=-3%2F2\" and \"b=2\"
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\n" ); document.write( "\"m%5B1%5D+=+-3%2F2\"\r
\n" ); document.write( "\n" ); document.write( "Now find \"m%5B2%5D\"\r
\n" ); document.write( "\n" ); document.write( "\"m%5B1%5D+=+-1%2Fm%5B2%5D\"............substitute \"m%5B1%5D\" with \"+-3%2F2\"\r
\n" ); document.write( "\n" ); document.write( "\"-3%2F2+=+-1%2Fm%5B2%5D\"………….multiply both sides by \"+m%5B2%5D+\"\r
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\n" ); document.write( "\n" ); document.write( "\"-%283%2F2%29+m%5B2%5D++=+-%281%2Fm%5B2%5D%29+m%5B2%5D+\"………….\r
\n" ); document.write( "\n" ); document.write( "\"-%283%2F2%29+m%5B2%5D++=+-1+\"………….divide bothe sides by \"+-3%2F2+\"\r
\n" ); document.write( "\n" ); document.write( "\"-%283%2F2%29+m%5B2%5D%2F+%28-3%2F2%29+++=+%28-1%29%2F%28-3%2F2%29++\"………….
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\n" ); document.write( "\"m%5B2%5D+=+%28-1%29%2F%28-3%2F2%29++\"………….....we can write \"-1\" as \"-1%2F1\"\r
\n" ); document.write( "\n" ); document.write( "\"m%5B2%5D+=+%28-1%2F1%29%2F%28-3%2F2%29++\"………….simplify\r
\n" ); document.write( "\n" ); document.write( "\"m%5B2%5D+=+%28-2%29%2F-3\"………….\r
\n" ); document.write( "\n" ); document.write( "\"m%5B2%5D+=+2%2F3\"…………....your solution\r
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