FLVSKidd
  • FLVSKidd
Triangle ABC has been rotated...
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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FLVSKidd
  • FLVSKidd
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anonymous
  • anonymous
do you know how to find the slopes first?
FLVSKidd
  • FLVSKidd
The slope formula right? And then I just don't understand how I would prove that perpendicular lines have opposite and reciprocal slopes. Basically, what qualities make a slope opposite and reciprocal?

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anonymous
  • anonymous
yes, y2-y1/x2-x2 opposite is just different signs ex 2 and -2 reciprocal is that number under 1 so like 4 and 1/4
anonymous
  • anonymous
as long as both have different signs and one is a reciprocal of the other, they are perp
FLVSKidd
  • FLVSKidd
So in this example FE = -4/-5 and CB = -3/-4 Are they perpendicular or...

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