The equation of line CD is (y−3) = − 2 (x − 4). What is the slope of a line perpendicular to line CD?
a. 1 over 2
b. 2
c. negative 1 over 2
d. −2

Respuesta :


Slope: -2

NOTE: The line perpendicular to line  has a slope 

So your slope is    -  1 over 2  (Answer a)
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