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The slope of a line is 9. What is the slope of line that is parallel to it?

 

The slope of a line is 9. What is the slope of line that is perpendicular to it?

 Jul 19, 2020
 #1
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Parallel lines have the same slope

 

Perpindicular lines :  If a line has slope  'm'    the perpindicular slope is  - 1/m

      so if   slope   m = 9    perpindicular would be   - 1/9

 Jul 19, 2020

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