document.write( "Question 73691: Find an equation for line with y-intercept 3 that is perpendicular to the line y=(2/3)x-4.\r
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Algebra.Com's Answer #52890 by Edwin McCravy(20060) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "Find an equation for line with y-intercept 3 \r\n" );
document.write( "that is perpendicular to the line \r\n" );
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document.write( "Compare that to the \"slope y-intercept\" form\r\n" );
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document.write( "and you see that the slope is  \r\n" );
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document.write( "Now we use the rule:\r\n" );
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document.write( "If a line has slope  then \r\n" );
document.write( "1. A line parallel to it will ALSO have slope \r\n" );
document.write( "2. A line perpendicular to it will have slope \r\n" );
document.write( "(Note: if the slope is a whole number and\r\n" );
document.write( "not a fraction, write it over 1, so it will be\r\n" );
document.write( "in the form )\r\n" );
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document.write( "A line perpendicular to a line with slope  will\r\n" );
document.write( "therefore by the 2nd rule above have slope \r\n" );
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document.write( "Now all we have to do is use the slope y-intercept form\r\n" );
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document.write( "this time with  and , so we have\r\n" );
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document.write( "If , Find . \r\n" );
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document.write( "First find  by replacing  by \r\n" );
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document.write( "Now find  by replacing  by \r\n" );
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document.write( "So  =  =  =\r\n" );
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document.write( " =  =  =\r\n" );
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document.write( "Edwin

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