catman999 catman999

24-06-2016
Mathematics

contestada

Is the given point interior, exterior, or on the circle (x + 2)2 + (y - 3)2 = 81?

R(6, 3)

Respuesta :

milanmoncy2000 milanmoncy2000

24-06-2016

i think it is interior

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24-06-2016

Hello,

Answer: interior.

C(-2,3) is the center of the circle
R(6,3)
Let's calculate RC²=(6+2)²+(3-3)²=8²
==>RC=8 and radius= 9
The point R is thus interior of the circle.

Answer Link

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