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BryannaRusse
BryannaRusse BryannaRusse
  • 16-07-2015
  • Mathematics
Answered

The equation of line CD is (y−3) = − 2 (x − 4). What is the slope of a line perpendicular to line CD?

A1 over 2
B2
Cnegative 1 over 2
D−2

Verified Answer :

Paweł19 Paweł19
  • 18-07-2015

\((y-3)=-2(x-4) \\ y-3 = -2x+8 \\ y=-2x+11\)
Slope: -2

NOTE: The line perpendicular to line \(y=mx+b\) has a slope \(-\dfrac{1}{m}\). 

So your slope is \(-\dfrac{1}{-2}=\dfrac{1}{2}\)   -  1 over 2  (Answer a)

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