natmcken64
natmcken64 natmcken64
  • 20-09-2018
  • Mathematics
contestada

Please help me answer this with an explanation

Please help me answer this with an explanation class=

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Cathi Cathi
  • 20-09-2018
You need to find the slope first. (-9,-4). (3,4)

-4-4= -8
-9-3 =-12. Slope is -8/-12 or 8/12 or 2/3


Perpendicular is the negative reciprocal. Or flip over the 2/3 and make it negative.

The answer is - 3/2
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altavistard
altavistard altavistard
  • 20-09-2018

The change in y as we move from the first point to the second is 8, and the corresponding change in x is 12.  Thus, the slope of the line thru these two points is 8/12, or 2/3 (answer C).

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