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December 20, 2014

December 20, 2014

Posted by **andrea** on Tuesday, September 22, 2009 at 7:46am.

- pre calculus -
**drwls**, Tuesday, September 22, 2009 at 8:05amThe line you want to be perpendicular to has slope (4-1)/(-2 -4) = -1/2

That means the line you want to draw has slope m = 2. (The product of the two slopes must be -1)

Your equation will be y = 2x + b, where

4 = 2*3 + b

b = -2

y = 2x - 2 is the equation.

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