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Is the given point interior, exterior, or on the circle (x + 2)2 + (y - 3)2 = 81? Q(6,3)

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User Glarkou
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1 Answer

5 votes
Alright

This equation models a circle with a center of (-2 , 3) and a radius of 9

To check the point (6,3) how far is it from the center (-2,3):

using the distance formula:

√((3-3)^2+(-2-6)^2) = √(0+8^2) = √(64) =8

therefore, this point lies INSIDE the circle, not on it nor outside it.

It is an interior point.
answered
User Akos Nagy
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8.2k points

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