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What is the slope of a line perpendicular to the line containing the points (-1,2) and (1,-2)? Express your answer as a common fraction.

 Jul 19, 2020
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slope,  m  , between the two points    (y1-y2) / (x1-x2)   =  -2

   perpindicular slope would be  - 1/m   =   1/2

 Jul 19, 2020

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