document.write( "Question 1081704: Find the value of parameter k so that the line 3x - 5ky + 5 = 0 will be perpendiculat to 4x + 3y = 2. \n" ); document.write( "

Algebra.Com's Answer #695751 by math_helper(2461) $\"\"$ $\"About$

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document.write( "(1)  3x-5ky+5 = 0   —>   y = (-3/(5k))x - (1/k)\r
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document.write( "(2)  4x+3y=2  —> y = (-4/3)x + (2/3)\r
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document.write( "In order for the lines to be perpendicular:   m1 = -1/m2\r
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document.write( "m1 = -3/(5k)
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document.write( "m2 = (-4/3)\r
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document.write( "   -3/(5k) = (-1)/(-4/3)    —>    \n" );
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