samanthagreen
samanthagreen samanthagreen
  • 12-02-2018
  • Mathematics
contestada

Radius  of circle O has a slope of 2.5. What is the slope of the tangent line to circle O through point A?

0.8


2.5


-0.4


-5

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 15-02-2018
The tangent line is perpendicular to the radius, so will have slope
.. -1/2.5 = -0.4 . . . . . . corresponding to the 3rd selection

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